253939388 has 12 divisors (see below), whose sum is σ = 444728592. Its totient is φ = 126874080.

The previous prime is 253939379. The next prime is 253939391. The reversal of 253939388 is 883939352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17753 + ... + 28688.

It is an arithmetic number, because the mean of its divisors is an integer number (37060716).

Almost surely, 2^253939388 is an apocalyptic number.

It is an amenable number.

253939388 is a deficient number, since it is larger than the sum of its proper divisors (190789204).

253939388 is a wasteful number, since it uses less digits than its factorization.

253939388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47812 (or 47810 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 253939388 is about 15935.4757694899. The cubic root of 253939388 is about 633.2521741493.

The spelling of 253939388 in words is "two hundred fifty-three million, nine hundred thirty-nine thousand, three hundred eighty-eight".