253853140 has 24 divisors (see below), whose sum is σ = 546095592. Its totient is φ = 99064320.

The previous prime is 253853111. The next prime is 253853161. The reversal of 253853140 is 41358352.

It can be written as a sum of positive squares in 4 ways, for example, as 37527876 + 216325264 = 6126^2 + 14708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153969 + ... + 155608.

It is an arithmetic number, because the mean of its divisors is an integer number (22753983).

Almost surely, 2^253853140 is an apocalyptic number.

253853140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253853140 is an abundant number, since it is smaller than the sum of its proper divisors (292242452).

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

253853140 is a wasteful number, since it uses less digits than its factorization.

253853140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309627 (or 309625 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 253853140 is about 15932.7693763514. The cubic root of 253853140 is about 633.1804734199.

The spelling of 253853140 in words is "two hundred fifty-three million, eight hundred fifty-three thousand, one hundred forty".