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2042222042440 = 2351311028937879
BaseRepresentation
bin11101101101111101111…
…010110101110101001000
321020020022222001211122201
4131231331322311311020
5231424432320324230
64202103413525544
7300355110641506
oct35557572656510
97206288054581
102042222042440
11718113114238
1228b9680438b4
1311a771a95238
1470bb61d5676
15381c9ad75ca
hex1db7deb5d48

2042222042440 has 64 divisors (see below), whose sum is σ = 4630648176000. Its totient is φ = 810552837120.

The previous prime is 2042222042437. The next prime is 2042222042527. The reversal of 2042222042440 is 442402222402.

It is a super-2 number, since 2×20422220424402 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2042222042399 and 2042222042408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53895421 + ... + 53933299.

It is an arithmetic number, because the mean of its divisors is an integer number (72353877750).

Almost surely, 22042222042440 is an apocalyptic number.

2042222042440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042222042440 is an abundant number, since it is smaller than the sum of its proper divisors (2588426133560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2042222042440 is a wasteful number, since it uses less digits than its factorization.

2042222042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48310 (or 48306 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 2042222042440 its reverse (442402222402), we get a palindrome (2484624264842).

The spelling of 2042222042440 in words is "two trillion, forty-two billion, two hundred twenty-two million, forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 131 262 524 655 1048 1310 2620 5240 10289 20578 37879 41156 51445 75758 82312 102890 151516 189395 205780 303032 378790 411560 757580 1347859 1515160 2695718 4962149 5391436 6739295 9924298 10782872 13478590 19848596 24810745 26957180 39697192 49621490 53914360 99242980 198485960 389737031 779474062 1558948124 1948685155 3117896248 3897370310 7794740620 15589481240 51055551061 102111102122 204222204244 255277755305 408444408488 510555510610 1021111021220 2042222042440