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13404222240 = 2535291039349
BaseRepresentation
bin11000111101111010…
…00011001100100000
31021121011102001010120
430132331003030200
5204422440102430
610054031000240
7653112003063
oct143675031440
937534361116
1013404222240
115759374622
122721069080
131358061066
1491230c8da
15536b9b610
hex31ef43320

13404222240 has 192 divisors, whose sum is σ = 44108064000. Its totient is φ = 3417329664.

The previous prime is 13404222229. The next prime is 13404222263. The reversal of 13404222240 is 4222240431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13404222240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1429086 + ... + 1438434.

It is an arithmetic number, because the mean of its divisors is an integer number (229729500).

Almost surely, 213404222240 is an apocalyptic number.

13404222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13404222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22054032000).

13404222240 is an abundant number, since it is smaller than the sum of its proper divisors (30703841760).

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

13404222240 is a wasteful number, since it uses less digits than its factorization.

13404222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9499 (or 9491 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 13404222240 its reverse (4222240431), we get a palindrome (17626462671).

The spelling of 13404222240 in words is "thirteen billion, four hundred four million, two hundred twenty-two thousand, two hundred forty".