252446820 has 48 divisors (see below), whose sum is σ = 713731200. Its totient is φ = 66663936.

The previous prime is 252446797. The next prime is 252446833. The reversal of 252446820 is 28644252.

It is a super-2 number, since 2×252446820² = 127458793856224800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14245 + ... + 26604.

It is an arithmetic number, because the mean of its divisors is an integer number (14869400).

Almost surely, 2^252446820 is an apocalyptic number.

252446820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252446820 is an abundant number, since it is smaller than the sum of its proper divisors (461284380).

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

252446820 is a wasteful number, since it uses less digits than its factorization.

252446820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40964 (or 40962 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 252446820 is about 15888.5751406474. The cubic root of 252446820 is about 632.0090562447.

The spelling of 252446820 in words is "two hundred fifty-two million, four hundred forty-six thousand, eight hundred twenty".