249264856 has 16 divisors (see below), whose sum is σ = 480003840. Its totient is φ = 121263840.

The previous prime is 249264833. The next prime is 249264887. The reversal of 249264856 is 658462942.

It is a congruent number.

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, 420760 + ... + 421351.

It is an arithmetic number, because the mean of its divisors is an integer number (30000240).

Almost surely, 2^249264856 is an apocalyptic number.

It is an amenable number.

249264856 is a deficient number, since it is larger than the sum of its proper divisors (230738984).

249264856 is a wasteful number, since it uses less digits than its factorization.

249264856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842154 (or 842150 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 249264856 is about 15788.1238910771. The cubic root of 249264856 is about 629.3424364387.

The spelling of 249264856 in words is "two hundred forty-nine million, two hundred sixty-four thousand, eight hundred fifty-six".