252791140 has 24 divisors (see below), whose sum is σ = 606699072. Its totient is φ = 86671200.

The previous prime is 252791113. The next prime is 252791153. The reversal of 252791140 is 41197252.

252791140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 902686 + ... + 902965.

It is an arithmetic number, because the mean of its divisors is an integer number (25279128).

Almost surely, 2^252791140 is an apocalyptic number.

252791140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252791140 is an abundant number, since it is smaller than the sum of its proper divisors (353907932).

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

252791140 is a wasteful number, since it uses less digits than its factorization.

252791140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805667 (or 1805665 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 252791140 is about 15899.4069071774. The cubic root of 252791140 is about 632.2962645851.

The spelling of 252791140 in words is "two hundred fifty-two million, seven hundred ninety-one thousand, one hundred forty".