253796540 has 24 divisors (see below), whose sum is σ = 534667392. Its totient is φ = 101195840.

The previous prime is 253796533. The next prime is 253796549. The reversal of 253796540 is 45697352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253796549) 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, 13676 + ... + 26355.

It is an arithmetic number, because the mean of its divisors is an integer number (22277808).

Almost surely, 2^253796540 is an apocalyptic number.

253796540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253796540 is an abundant number, since it is smaller than the sum of its proper divisors (280870852).

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

253796540 is a wasteful number, since it uses less digits than its factorization.

253796540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40357 (or 40355 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 253796540 is about 15930.9930638363. The cubic root of 253796540 is about 633.1334111977.

The spelling of 253796540 in words is "two hundred fifty-three million, seven hundred ninety-six thousand, five hundred forty".