252871460 has 12 divisors (see below), whose sum is σ = 531030108. Its totient is φ = 101148576.

The previous prime is 252871429. The next prime is 252871471. The reversal of 252871460 is 64178252.

It can be written as a sum of positive squares in 2 ways, for example, as 48553024 + 204318436 = 6968^2 + 14294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252871460.

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 3 ways as a sum of consecutive naturals, for example, 6321767 + ... + 6321806.

It is an arithmetic number, because the mean of its divisors is an integer number (44252509).

Almost surely, 2^252871460 is an apocalyptic number.

252871460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252871460 is an abundant number, since it is smaller than the sum of its proper divisors (278158648).

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

252871460 is a wasteful number, since it uses less digits than its factorization.

252871460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643582 (or 12643580 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 252871460 is about 15901.9325869531. The cubic root of 252871460 is about 632.3632245507.

The spelling of 252871460 in words is "two hundred fifty-two million, eight hundred seventy-one thousand, four hundred sixty".