249604836 has 48 divisors (see below), whose sum is σ = 628435584. Its totient is φ = 76651776.

The previous prime is 249604819. The next prime is 249604841. The reversal of 249604836 is 638406942.

It is a happy number.

249604836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99696 + ... + 102168.

It is an arithmetic number, because the mean of its divisors is an integer number (13092408).

Almost surely, 2^249604836 is an apocalyptic number.

249604836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

249604836 is an abundant number, since it is smaller than the sum of its proper divisors (378830748).

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

249604836 is a wasteful number, since it uses less digits than its factorization.

249604836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 249604836 is about 15798.8871760007. The cubic root of 249604836 is about 629.6284329504.

The spelling of 249604836 in words is "two hundred forty-nine million, six hundred four thousand, eight hundred thirty-six".