253938768 has 40 divisors (see below), whose sum is σ = 684533568. Its totient is φ = 80965632.

The previous prime is 253938767. The next prime is 253938793. The reversal of 253938768 is 867839352.

It is a self number, because there is not a number n which added to its sum of digits gives 253938768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253938767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113905 + ... + 116112.

Almost surely, 2^253938768 is an apocalyptic number.

It is an amenable number.

253938768 is an abundant number, since it is smaller than the sum of its proper divisors (430594800).

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

253938768 is a wasteful number, since it uses less digits than its factorization.

253938768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230051 (or 230045 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 253938768 is about 15935.4563160268. The cubic root of 253938768 is about 633.2516587814.

The spelling of 253938768 in words is "two hundred fifty-three million, nine hundred thirty-eight thousand, seven hundred sixty-eight".