249709272 has 32 divisors (see below), whose sum is σ = 633070080. Its totient is φ = 82063520.

The previous prime is 249709259. The next prime is 249709279. The reversal of 249709272 is 272907942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249709279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71568 + ... + 74975.

It is an arithmetic number, because the mean of its divisors is an integer number (19783440).

Almost surely, 2^249709272 is an apocalyptic number.

It is an amenable number.

249709272 is an abundant number, since it is smaller than the sum of its proper divisors (383360808).

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

249709272 is a wasteful number, since it uses less digits than its factorization.

249709272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146623 (or 146619 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 249709272 is about 15802.1919998461. The cubic root of 249709272 is about 629.7162340087.

The spelling of 249709272 in words is "two hundred forty-nine million, seven hundred nine thousand, two hundred seventy-two".