249083864 has 64 divisors (see below), whose sum is σ = 510935040. Its totient is φ = 113379840.

The previous prime is 249083851. The next prime is 249083869. The reversal of 249083864 is 468380942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249083869) 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, 1116857 + ... + 1117079.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2^249083864 is an apocalyptic number.

It is an amenable number.

249083864 is an abundant number, since it is smaller than the sum of its proper divisors (261851176).

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

249083864 is a wasteful number, since it uses less digits than its factorization.

249083864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 249083864 is about 15782.3909468749. The cubic root of 249083864 is about 629.1900770456.

The spelling of 249083864 in words is "two hundred forty-nine million, eighty-three thousand, eight hundred sixty-four".