253368318 has 24 divisors (see below), whose sum is σ = 589469832. Its totient is φ = 72390864.

The previous prime is 253368317. The next prime is 253368329. The reversal of 253368318 is 813863352.

It is a super-2 number, since 2×253368318² = 128391009132298248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253368317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430605 + ... + 431192.

It is an arithmetic number, because the mean of its divisors is an integer number (24561243).

Almost surely, 2^253368318 is an apocalyptic number.

253368318 is an abundant number, since it is smaller than the sum of its proper divisors (336101514).

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

253368318 is a wasteful number, since it uses less digits than its factorization.

253368318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861816 (or 861809 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 253368318 is about 15917.5474869717. The cubic root of 253368318 is about 632.7771228057. Note that the first 3 decimals are identical.

The spelling of 253368318 in words is "two hundred fifty-three million, three hundred sixty-eight thousand, three hundred eighteen".