249045704 has 8 divisors (see below), whose sum is σ = 466960710. Its totient is φ = 124522848.

The previous prime is 249045703. The next prime is 249045721. The reversal of 249045704 is 407540942.

It can be written as a sum of positive squares in only one way, i.e., 209380900 + 39664804 = 14470^2 + 6298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (249045701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565349 + ... + 15565364.

Almost surely, 2^249045704 is an apocalyptic number.

It is an amenable number.

249045704 is a deficient number, since it is larger than the sum of its proper divisors (217915006).

249045704 is a wasteful number, since it uses less digits than its factorization.

249045704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31130719 (or 31130715 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 249045704 is about 15781.1819582692. The cubic root of 249045704 is about 629.1579444683.

The spelling of 249045704 in words is "two hundred forty-nine million, forty-five thousand, seven hundred four".