13957830 has 24 divisors (see below), whose sum is σ = 36290592. Its totient is φ = 3722064.

The previous prime is 13957817. The next prime is 13957841. The reversal of 13957830 is 3875931.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct 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, 77454 + ... + 77633.

It is an arithmetic number, because the mean of its divisors is an integer number (1512108).

Almost surely, 2^13957830 is an apocalyptic number.

13957830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13957830 is an abundant number, since it is smaller than the sum of its proper divisors (22332762).

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

13957830 is a wasteful number, since it uses less digits than its factorization.

13957830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155100 (or 155097 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 13957830 is about 3736.0179335758. The cubic root of 13957830 is about 240.7719932807.

The spelling of 13957830 in words is "thirteen million, nine hundred fifty-seven thousand, eight hundred thirty".