13031396 has 12 divisors (see below), whose sum is σ = 26062848. Its totient is φ = 5584872.

The previous prime is 13031393. The next prime is 13031407. The reversal of 13031396 is 69313031.

13031396 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13031393) 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, 232676 + ... + 232731.

It is an arithmetic number, because the mean of its divisors is an integer number (2171904).

Almost surely, 2^13031396 is an apocalyptic number.

It is an amenable number.

13031396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13031396 is a wasteful number, since it uses less digits than its factorization.

13031396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465418 (or 465416 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13031396 is about 3609.9024917579. The cubic root of 13031396 is about 235.3226050656.

The spelling of 13031396 in words is "thirteen million, thirty-one thousand, three hundred ninety-six".