253868028 has 12 divisors (see below), whose sum is σ = 592358760. Its totient is φ = 84622672.

The previous prime is 253867967. The next prime is 253868029. The reversal of 253868028 is 820868352.

253868028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253868029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10577823 + ... + 10577846.

It is an arithmetic number, because the mean of its divisors is an integer number (49363230).

Almost surely, 2^253868028 is an apocalyptic number.

It is an amenable number.

253868028 is an abundant number, since it is smaller than the sum of its proper divisors (338490732).

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

253868028 is a wasteful number, since it uses less digits than its factorization.

253868028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155676 (or 21155674 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 253868028 is about 15933.2365826909. The cubic root of 253868028 is about 633.1928514516.

The spelling of 253868028 in words is "two hundred fifty-three million, eight hundred sixty-eight thousand, twenty-eight".