249479374 has 16 divisors (see below), whose sum is σ = 386661600. Its totient is φ = 120658720.

The previous prime is 249479311. The next prime is 249479389. The reversal of 249479374 is 473974942.

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, 9049 + ... + 24100.

It is an arithmetic number, because the mean of its divisors is an integer number (24166350).

Almost surely, 2^249479374 is an apocalyptic number.

249479374 is a deficient number, since it is larger than the sum of its proper divisors (137182226).

249479374 is a wasteful number, since it uses less digits than its factorization.

249479374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33275.

The product of its digits is 1524096, while the sum is 49.

The square root of 249479374 is about 15794.9160808154. The cubic root of 249479374 is about 629.5229225995.

The spelling of 249479374 in words is "two hundred forty-nine million, four hundred seventy-nine thousand, three hundred seventy-four".