252463540 has 48 divisors (see below), whose sum is σ = 606816000. Its totient is φ = 86429952.

The previous prime is 252463529. The next prime is 252463553. The reversal of 252463540 is 45364252.

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 15 ways as a sum of consecutive naturals, for example, 179761 + ... + 181159.

It is an arithmetic number, because the mean of its divisors is an integer number (12642000).

Almost surely, 2^252463540 is an apocalyptic number.

252463540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252463540 is an abundant number, since it is smaller than the sum of its proper divisors (354352460).

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

252463540 is a wasteful number, since it uses less digits than its factorization.

252463540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704 (or 2702 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 252463540 is about 15889.1012961715. The cubic root of 252463540 is about 632.0230089631.

The spelling of 252463540 in words is "two hundred fifty-two million, four hundred sixty-three thousand, five hundred forty".