249740948 has 12 divisors (see below), whose sum is σ = 462755412. Its totient is φ = 117525120.

The previous prime is 249740891. The next prime is 249740951. The reversal of 249740948 is 849047942.

It can be written as a sum of positive squares in 2 ways, for example, as 182304004 + 67436944 = 13502^2 + 8212^2 .

It is a super-2 number, since 2×249740948² = 124741082215877408, which contains 22 as substring.

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, 1836263 + ... + 1836398.

It is an arithmetic number, because the mean of its divisors is an integer number (38562951).

Almost surely, 2^249740948 is an apocalyptic number.

It is an amenable number.

249740948 is a deficient number, since it is larger than the sum of its proper divisors (213014464).

249740948 is a wasteful number, since it uses less digits than its factorization.

249740948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672682 (or 3672680 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 249740948 is about 15803.1942340781. The cubic root of 249740948 is about 629.7428597027.

The spelling of 249740948 in words is "two hundred forty-nine million, seven hundred forty thousand, nine hundred forty-eight".