13431900 has 36 divisors (see below), whose sum is σ = 38863832. Its totient is φ = 3581760.

The previous prime is 13431871. The next prime is 13431911. The reversal of 13431900 is 913431.

It is a super-2 number, since 2×13431900² = 360831875220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22087 + ... + 22686.

Almost surely, 2^13431900 is an apocalyptic number.

13431900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431900 is an abundant number, since it is smaller than the sum of its proper divisors (25431932).

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

13431900 is a wasteful number, since it uses less digits than its factorization.

13431900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44790 (or 44783 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13431900 is about 3664.9556613962. The cubic root of 13431900 is about 237.7091048534.

The spelling of 13431900 in words is "thirteen million, four hundred thirty-one thousand, nine hundred".