252130816 has 80 divisors (see below), whose sum is σ = 582177024. Its totient is φ = 106850304.

The previous prime is 252130799. The next prime is 252130861. The reversal of 252130816 is 618031252.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368811 + ... + 369493.

Almost surely, 2^252130816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252130816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291088512).

252130816 is an abundant number, since it is smaller than the sum of its proper divisors (330046208).

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

252130816 is an equidigital number, since it uses as much as digits as its factorization.

252130816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 252130816 is about 15878.6276485092. The cubic root of 252130816 is about 631.7452372737.

The spelling of 252130816 in words is "two hundred fifty-two million, one hundred thirty thousand, eight hundred sixteen".