252328280 has 32 divisors (see below), whose sum is σ = 601136640. Its totient is φ = 94993920.

The previous prime is 252328277. The next prime is 252328301. The reversal of 252328280 is 82823252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184856 + ... + 186215.

It is an arithmetic number, because the mean of its divisors is an integer number (18785520).

Almost surely, 2^252328280 is an apocalyptic number.

252328280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252328280 is an abundant number, since it is smaller than the sum of its proper divisors (348808360).

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

252328280 is a wasteful number, since it uses less digits than its factorization.

252328280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371099 (or 371095 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 252328280 is about 15884.8443492532. The cubic root of 252328280 is about 631.9101178057.

It can be divided in two parts, 2523 and 28280, that added together give a palindrome (30803).

The spelling of 252328280 in words is "two hundred fifty-two million, three hundred twenty-eight thousand, two hundred eighty".