252318780 has 96 divisors (see below), whose sum is σ = 897146880. Its totient is φ = 57672000.

The previous prime is 252318779. The next prime is 252318793. The reversal of 252318780 is 87813252.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29596 + ... + 37155.

It is an arithmetic number, because the mean of its divisors is an integer number (9345280).

Almost surely, 2^252318780 is an apocalyptic number.

252318780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252318780 is an abundant number, since it is smaller than the sum of its proper divisors (644828100).

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

252318780 is a wasteful number, since it uses less digits than its factorization.

252318780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66776 (or 66768 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 252318780 is about 15884.5453192718. The cubic root of 252318780 is about 631.9021873676.

The spelling of 252318780 in words is "two hundred fifty-two million, three hundred eighteen thousand, seven hundred eighty".