249279064 has 16 divisors (see below), whose sum is σ = 480031200. Its totient is φ = 121270752.

The previous prime is 249279053. The next prime is 249279097. The reversal of 249279064 is 460972942.

249279064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 249279064.

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, 420784 + ... + 421375.

It is an arithmetic number, because the mean of its divisors is an integer number (30001950).

Almost surely, 2^249279064 is an apocalyptic number.

It is an amenable number.

249279064 is a deficient number, since it is larger than the sum of its proper divisors (230752136).

249279064 is a wasteful number, since it uses less digits than its factorization.

249279064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842202 (or 842198 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 249279064 is about 15788.5738431310. The cubic root of 249279064 is about 629.3543936363.

The spelling of 249279064 in words is "two hundred forty-nine million, two hundred seventy-nine thousand, sixty-four".