249392874 has 16 divisors (see below), whose sum is σ = 498974112. Its totient is φ = 83099568.

The previous prime is 249392833. The next prime is 249392881. The reversal of 249392874 is 478293942.

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 7 ways as a sum of consecutive naturals, for example, 14077 + ... + 26399.

It is an arithmetic number, because the mean of its divisors is an integer number (31185882).

Almost surely, 2^249392874 is an apocalyptic number.

249392874 is an abundant number, since it is smaller than the sum of its proper divisors (249581238).

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

249392874 is a wasteful number, since it uses less digits than its factorization.

249392874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15701.

The product of its digits is 870912, while the sum is 48.

The square root of 249392874 is about 15792.1776205817. The cubic root of 249392874 is about 629.4501576963.

The spelling of 249392874 in words is "two hundred forty-nine million, three hundred ninety-two thousand, eight hundred seventy-four".