249045456 has 40 divisors (see below), whose sum is σ = 701856864. Its totient is φ = 75468160.

The previous prime is 249045361. The next prime is 249045479. The reversal of 249045456 is 654540942.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235311 + ... + 236366.

Almost surely, 2^249045456 is an apocalyptic number.

It is an amenable number.

249045456 is an abundant number, since it is smaller than the sum of its proper divisors (452811408).

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

249045456 is a wasteful number, since it uses less digits than its factorization.

249045456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471699 (or 471693 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 249045456 is about 15781.1741008076. The cubic root of 249045456 is about 629.1577356295.

The spelling of 249045456 in words is "two hundred forty-nine million, forty-five thousand, four hundred fifty-six".