252706212 has 36 divisors (see below), whose sum is σ = 696857616. Its totient is φ = 76577520.

The previous prime is 252706193. The next prime is 252706219. The reversal of 252706212 is 212607252.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (252706219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318678 + ... + 319469.

It is an arithmetic number, because the mean of its divisors is an integer number (19357156).

Almost surely, 2^252706212 is an apocalyptic number.

252706212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252706212 is an abundant number, since it is smaller than the sum of its proper divisors (444151404).

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

252706212 is a wasteful number, since it uses less digits than its factorization.

252706212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638168 (or 638163 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 252706212 is about 15896.7358913709. The cubic root of 252706212 is about 632.2254476623.

The spelling of 252706212 in words is "two hundred fifty-two million, seven hundred six thousand, two hundred twelve".