252812040 has 64 divisors (see below), whose sum is σ = 816782400. Its totient is φ = 62230272.

The previous prime is 252812039. The next prime is 252812041. The reversal of 252812040 is 40218252.

It is an interprime number because it is at equal distance from previous prime (252812039) and next prime (252812041).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 252812040.

It is not an unprimeable number, because it can be changed into a prime (252812041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79470 + ... + 82589.

It is an arithmetic number, because the mean of its divisors is an integer number (12762225).

Almost surely, 2^252812040 is an apocalyptic number.

252812040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252812040 is an abundant number, since it is smaller than the sum of its proper divisors (563970360).

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

252812040 is a wasteful number, since it uses less digits than its factorization.

252812040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162086 (or 162082 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 252812040 is about 15900.0641508140. The cubic root of 252812040 is about 632.3136895468.

The spelling of 252812040 in words is "two hundred fifty-two million, eight hundred twelve thousand, forty".