249070388 has 24 divisors (see below), whose sum is σ = 506587200. Its totient is φ = 104934528.

The previous prime is 249070351. The next prime is 249070391. The reversal of 249070388 is 883070942.

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 7 ways as a sum of consecutive naturals, for example, 73733 + ... + 77036.

It is an arithmetic number, because the mean of its divisors is an integer number (21107800).

Almost surely, 2^249070388 is an apocalyptic number.

249070388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

249070388 is an abundant number, since it is smaller than the sum of its proper divisors (257516812).

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

249070388 is a wasteful number, since it uses less digits than its factorization.

249070388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150839 (or 150837 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 249070388 is about 15781.9640095902. The cubic root of 249070388 is about 629.1787299725.

The spelling of 249070388 in words is "two hundred forty-nine million, seventy thousand, three hundred eighty-eight".