252844460 has 48 divisors (see below), whose sum is σ = 583541280. Its totient is φ = 91261440.

The previous prime is 252844453. The next prime is 252844469. The reversal of 252844460 is 64448252.

It is a self number, because there is not a number n which added to its sum of digits gives 252844460.

It is not an unprimeable number, because it can be changed into a prime (252844469) by changing a digit.

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, 25946 + ... + 34334.

It is an arithmetic number, because the mean of its divisors is an integer number (12157110).

Almost surely, 2^252844460 is an apocalyptic number.

252844460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252844460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291770640).

252844460 is an abundant number, since it is smaller than the sum of its proper divisors (330696820).

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

252844460 is a wasteful number, since it uses less digits than its factorization.

252844460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546 (or 8544 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 252844460 is about 15901.0836108738. The cubic root of 252844460 is about 632.3407171804.

The spelling of 252844460 in words is "two hundred fifty-two million, eight hundred forty-four thousand, four hundred sixty".