249640204 has 24 divisors (see below), whose sum is σ = 477460368. Its totient is φ = 113264640.

The previous prime is 249640201. The next prime is 249640231. The reversal of 249640204 is 402046942.

It is not an unprimeable number, because it can be changed into a prime (249640201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20472 + ... + 30304.

It is an arithmetic number, because the mean of its divisors is an integer number (19894182).

Almost surely, 2^249640204 is an apocalyptic number.

It is an amenable number.

249640204 is a deficient number, since it is larger than the sum of its proper divisors (227820164).

249640204 is a wasteful number, since it uses less digits than its factorization.

249640204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425 (or 10423 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 249640204 is about 15800.0064556949. The cubic root of 249640204 is about 629.6581701502.

The spelling of 249640204 in words is "two hundred forty-nine million, six hundred forty thousand, two hundred four".