249511244 has 36 divisors (see below), whose sum is σ = 478931544. Its totient is φ = 113342208.

The previous prime is 249511243. The next prime is 249511247. The reversal of 249511244 is 442115942.

It is a self number, because there is not a number n which added to its sum of digits gives 249511244.

It is not an unprimeable number, because it can be changed into a prime (249511243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55007 + ... + 59369.

It is an arithmetic number, because the mean of its divisors is an integer number (13303654).

Almost surely, 2^249511244 is an apocalyptic number.

It is an amenable number.

249511244 is a deficient number, since it is larger than the sum of its proper divisors (229420300).

249511244 is a wasteful number, since it uses less digits than its factorization.

249511244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4411 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 249511244 is about 15795.9249175222. The cubic root of 249511244 is about 629.5497278098.

The spelling of 249511244 in words is "two hundred forty-nine million, five hundred eleven thousand, two hundred forty-four".