252361240 has 16 divisors (see below), whose sum is σ = 567812880. Its totient is φ = 100944480.

The previous prime is 252361223. The next prime is 252361259. The reversal of 252361240 is 42163252.

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 3 ways as a sum of consecutive naturals, for example, 3154476 + ... + 3154555.

It is an arithmetic number, because the mean of its divisors is an integer number (35488305).

Almost surely, 2^252361240 is an apocalyptic number.

252361240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252361240 is an abundant number, since it is smaller than the sum of its proper divisors (315451640).

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

252361240 is a wasteful number, since it uses less digits than its factorization.

252361240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309042 (or 6309038 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 252361240 is about 15885.8817822619. The cubic root of 252361240 is about 631.9376307090.

The spelling of 252361240 in words is "two hundred fifty-two million, three hundred sixty-one thousand, two hundred forty".