249746964 has 12 divisors (see below), whose sum is σ = 582742944. Its totient is φ = 83248984.

The previous prime is 249746953. The next prime is 249747011. The reversal of 249746964 is 469647942.

249746964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 10406112 + ... + 10406135.

It is an arithmetic number, because the mean of its divisors is an integer number (48561912).

Almost surely, 2^249746964 is an apocalyptic number.

It is an amenable number.

249746964 is an abundant number, since it is smaller than the sum of its proper divisors (332995980).

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

249746964 is a wasteful number, since it uses less digits than its factorization.

249746964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812254 (or 20812252 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The square root of 249746964 is about 15803.3845741980. The cubic root of 249746964 is about 629.7479162792.

The spelling of 249746964 in words is "two hundred forty-nine million, seven hundred forty-six thousand, nine hundred sixty-four".