13856562 has 16 divisors (see below), whose sum is σ = 30792480. Its totient is φ = 4618836.

The previous prime is 13856539. The next prime is 13856593. The reversal of 13856562 is 26565831.

13856562 is a `hidden beast` number, since 1 + 38 + 565 + 62 = 666.

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, 128248 + ... + 128355.

It is an arithmetic number, because the mean of its divisors is an integer number (1924530).

Almost surely, 2^13856562 is an apocalyptic number.

13856562 is an abundant number, since it is smaller than the sum of its proper divisors (16935918).

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

13856562 is a wasteful number, since it uses less digits than its factorization.

13856562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256614 (or 256608 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 13856562 is about 3722.4403286017. The cubic root of 13856562 is about 240.1882897404.

The spelling of 13856562 in words is "thirteen million, eight hundred fifty-six thousand, five hundred sixty-two".