249858916 has 12 divisors (see below), whose sum is σ = 439670140. Its totient is φ = 124238880.

The previous prime is 249858881. The next prime is 249858929. The reversal of 249858916 is 619858942.

249858916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 93508900 + 156350016 = 9670^2 + 12504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171831 + ... + 173278.

Almost surely, 2^249858916 is an apocalyptic number.

It is an amenable number.

249858916 is a deficient number, since it is larger than the sum of its proper divisors (189811224).

249858916 is a wasteful number, since it uses less digits than its factorization.

249858916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345294 (or 345292 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 249858916 is about 15806.9262034084. The cubic root of 249858916 is about 629.8419995143.

The spelling of 249858916 in words is "two hundred forty-nine million, eight hundred fifty-eight thousand, nine hundred sixteen".