13457790 has 24 divisors (see below), whose sum is σ = 34990488. Its totient is φ = 3588720.

The previous prime is 13457767. The next prime is 13457831. The reversal of 13457790 is 9775431.

It is a happy number.

It is a super-2 number, since 2×13457790² = 362224223368200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74676 + ... + 74855.

It is an arithmetic number, because the mean of its divisors is an integer number (1457937).

Almost surely, 2^13457790 is an apocalyptic number.

13457790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13457790 is an abundant number, since it is smaller than the sum of its proper divisors (21532698).

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

13457790 is a wasteful number, since it uses less digits than its factorization.

13457790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149544 (or 149541 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 13457790 is about 3668.4860637598. The cubic root of 13457790 is about 237.8617350055.

The spelling of 13457790 in words is "thirteen million, four hundred fifty-seven thousand, seven hundred ninety".