249475884 has 48 divisors (see below), whose sum is σ = 704406528. Its totient is φ = 67085568.

The previous prime is 249475883. The next prime is 249475903. The reversal of 249475884 is 488574942.

249475884 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (249475883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85924 + ... + 88779.

It is an arithmetic number, because the mean of its divisors is an integer number (14675136).

Almost surely, 2^249475884 is an apocalyptic number.

It is an amenable number.

249475884 is an abundant number, since it is smaller than the sum of its proper divisors (454930644).

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

249475884 is a wasteful number, since it uses less digits than its factorization.

249475884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174734 (or 174732 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 249475884 is about 15794.8056018427. The cubic root of 249475884 is about 629.5199870926.

The spelling of 249475884 in words is "two hundred forty-nine million, four hundred seventy-five thousand, eight hundred eighty-four".