249249272 has 16 divisors (see below), whose sum is σ = 477286560. Its totient is φ = 121972864.

The previous prime is 249249251. The next prime is 249249283. The reversal of 249249272 is 272942942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331073 + ... + 331824.

It is an arithmetic number, because the mean of its divisors is an integer number (29830410).

Almost surely, 2^249249272 is an apocalyptic number.

It is an amenable number.

249249272 is a deficient number, since it is larger than the sum of its proper divisors (228037288).

249249272 is a wasteful number, since it uses less digits than its factorization.

249249272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662950 (or 662946 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 249249272 is about 15787.6303478388. The cubic root of 249249272 is about 629.3293207016.

The spelling of 249249272 in words is "two hundred forty-nine million, two hundred forty-nine thousand, two hundred seventy-two".