13132635940 has 24 divisors (see below), whose sum is σ = 27608007672. Its totient is φ = 5247440640.

The previous prime is 13132635937. The next prime is 13132635961. The reversal of 13132635940 is 4953623131.

It can be written as a sum of positive squares in 4 ways, for example, as 1198821376 + 11933814564 = 34624^2 + 109242^2 .

It is a super-2 number, since 2×13132635940² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13132635940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331651 + ... + 369130.

It is an arithmetic number, because the mean of its divisors is an integer number (1150333653).

Almost surely, 2^13132635940 is an apocalyptic number.

13132635940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13132635940 is an abundant number, since it is smaller than the sum of its proper divisors (14475371732).

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

13132635940 is a wasteful number, since it uses less digits than its factorization.

13132635940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701727 (or 701725 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 13132635940 in words is "thirteen billion, one hundred thirty-two million, six hundred thirty-five thousand, nine hundred forty".