252297460 has 24 divisors (see below), whose sum is σ = 530136936. Its totient is φ = 100859520.

The previous prime is 252297449. The next prime is 252297509. The reversal of 252297460 is 64792252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87123556 + 165173904 = 9334^2 + 12852^2 .

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, 50014 + ... + 54826.

It is an arithmetic number, because the mean of its divisors is an integer number (22089039).

Almost surely, 2^252297460 is an apocalyptic number.

252297460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252297460 is an abundant number, since it is smaller than the sum of its proper divisors (277839476).

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

252297460 is a wasteful number, since it uses less digits than its factorization.

252297460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443 (or 7441 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 252297460 is about 15883.8742125465. The cubic root of 252297460 is about 631.8843890701.

The spelling of 252297460 in words is "two hundred fifty-two million, two hundred ninety-seven thousand, four hundred sixty".