13432740256 has 24 divisors (see below), whose sum is σ = 28479993444. Its totient is φ = 6199726080.

The previous prime is 13432740227. The next prime is 13432740257. The reversal of 13432740256 is 65204723431.

It can be written as a sum of positive squares in 2 ways, for example, as 9738531856 + 3694208400 = 98684^2 + 60780^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13432740257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16144705 + ... + 16145536.

Almost surely, 2^13432740256 is an apocalyptic number.

13432740256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13432740256 is an abundant number, since it is smaller than the sum of its proper divisors (15047253188).

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

13432740256 is a wasteful number, since it uses less digits than its factorization.

13432740256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290264 (or 32290256 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 13432740256 in words is "thirteen billion, four hundred thirty-two million, seven hundred forty thousand, two hundred fifty-six".