252401212 has 24 divisors (see below), whose sum is σ = 507078656. Its totient is φ = 107684208.

The previous prime is 252401203. The next prime is 252401221. The reversal of 252401212 is 212104252.

It is an interprime number because it is at equal distance from previous prime (252401203) and next prime (252401221).

It is a self number, because there is not a number n which added to its sum of digits gives 252401212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13968 + ... + 26455.

Almost surely, 2^252401212 is an apocalyptic number.

It is an amenable number.

252401212 is an abundant number, since it is smaller than the sum of its proper divisors (254677444).

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

252401212 is a wasteful number, since it uses less digits than its factorization.

252401212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40657 (or 40655 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 252401212 is about 15887.1398306933. The cubic root of 252401212 is about 631.9709935681.

Adding to 252401212 its reverse (212104252), we get a palindrome (464505464).

The spelling of 252401212 in words is "two hundred fifty-two million, four hundred one thousand, two hundred twelve".