253944684 has 72 divisors (see below), whose sum is σ = 757306368. Its totient is φ = 70212960.

The previous prime is 253944667. The next prime is 253944697. The reversal of 253944684 is 486449352.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8442 + ... + 24065.

It is an arithmetic number, because the mean of its divisors is an integer number (10518144).

Almost surely, 2^253944684 is an apocalyptic number.

It is an amenable number.

253944684 is an abundant number, since it is smaller than the sum of its proper divisors (503361684).

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

253944684 is a wasteful number, since it uses less digits than its factorization.

253944684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32555 (or 32550 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 253944684 is about 15935.6419387485. The cubic root of 253944684 is about 633.2565763549.

The spelling of 253944684 in words is "two hundred fifty-three million, nine hundred forty-four thousand, six hundred eighty-four".