253738684 has 6 divisors (see below), whose sum is σ = 444042704. Its totient is φ = 126869340.

The previous prime is 253738679. The next prime is 253738697. The reversal of 253738684 is 486837352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31717332 + ... + 31717339.

Almost surely, 2^253738684 is an apocalyptic number.

It is an amenable number.

253738684 is a deficient number, since it is larger than the sum of its proper divisors (190304020).

253738684 is a wasteful number, since it uses less digits than its factorization.

253738684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63434675 (or 63434673 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 253738684 is about 15929.1771287785. The cubic root of 253738684 is about 633.0852973943.

The spelling of 253738684 in words is "two hundred fifty-three million, seven hundred thirty-eight thousand, six hundred eighty-four".