249676904 has 16 divisors (see below), whose sum is σ = 475819620. Its totient is φ = 122791680.

The previous prime is 249676901. The next prime is 249676939. The reversal of 249676904 is 409676942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 247432900 + 2244004 = 15730^2 + 1498^2 .

It is not an unprimeable number, because it can be changed into a prime (249676901) 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 3 ways as a sum of consecutive naturals, for example, 255329 + ... + 256304.

Almost surely, 2^249676904 is an apocalyptic number.

It is an amenable number.

249676904 is a deficient number, since it is larger than the sum of its proper divisors (226142716).

249676904 is a wasteful number, since it uses less digits than its factorization.

249676904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511700 (or 511696 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 249676904 is about 15801.1678049440. The cubic root of 249676904 is about 629.6890243184.

The spelling of 249676904 in words is "two hundred forty-nine million, six hundred seventy-six thousand, nine hundred four".