252400312 has 16 divisors (see below), whose sum is σ = 474039360. Its totient is φ = 125989824.

The previous prime is 252400297. The next prime is 252400319. The reversal of 252400312 is 213004252.

252400312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252400312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252400319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21133 + ... + 30844.

It is an arithmetic number, because the mean of its divisors is an integer number (29627460).

Almost surely, 2^252400312 is an apocalyptic number.

It is an amenable number.

252400312 is a deficient number, since it is larger than the sum of its proper divisors (221639048).

252400312 is a wasteful number, since it uses less digits than its factorization.

252400312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52590 (or 52586 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 252400312 is about 15887.1115058717. Note that the first 3 decimals coincide. The cubic root of 252400312 is about 631.9702424167.

Adding to 252400312 its reverse (213004252), we get a palindrome (465404564).

The spelling of 252400312 in words is "two hundred fifty-two million, four hundred thousand, three hundred twelve".