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440404705 = 51321927431
BaseRepresentation
bin11010010000000…
…000101011100001
31010200200212200101
4122100000223201
51400220422310
6111411222401
713625243506
oct3220005341
91120625611
10440404705
11206662634
121035a7a01
137031a400
14426c14ad
15289e543a
hex1a400ae1

440404705 has 24 divisors (see below), whose sum is σ = 602406720. Its totient is φ = 308093760.

The previous prime is 440404687. The next prime is 440404751. The reversal of 440404705 is 507404044.

It is not a de Polignac number, because 440404705 - 211 = 440402657 is a prime.

It is a super-2 number, since 2×4404047052 = 387912608372274050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2340 + ... + 29770.

It is an arithmetic number, because the mean of its divisors is an integer number (25100280).

Almost surely, 2440404705 is an apocalyptic number.

It is an amenable number.

440404705 is a deficient number, since it is larger than the sum of its proper divisors (162002015).

440404705 is a wasteful number, since it uses less digits than its factorization.

440404705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27481 (or 27468 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 440404705 is about 20985.8215231141. The cubic root of 440404705 is about 760.8236137045.

Adding to 440404705 its reverse (507404044), we get a palindrome (947808749).

The spelling of 440404705 in words is "four hundred forty million, four hundred four thousand, seven hundred five".

Divisors: 1 5 13 19 65 95 169 247 845 1235 3211 16055 27431 137155 356603 521189 1783015 2605945 4635839 6775457 23179195 33877285 88080941 440404705