252668212 has 12 divisors (see below), whose sum is σ = 468179460. Its totient is φ = 118902656.

The previous prime is 252668177. The next prime is 252668231. The reversal of 252668212 is 212866252.

It can be written as a sum of positive squares in 2 ways, for example, as 101525776 + 151142436 = 10076^2 + 12294^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1857787 + ... + 1857922.

It is an arithmetic number, because the mean of its divisors is an integer number (39014955).

Almost surely, 2^252668212 is an apocalyptic number.

It is an amenable number.

252668212 is a deficient number, since it is larger than the sum of its proper divisors (215511248).

252668212 is a wasteful number, since it uses less digits than its factorization.

252668212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715730 (or 3715728 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 252668212 is about 15895.5406325170. The cubic root of 252668212 is about 632.1937563541.

The spelling of 252668212 in words is "two hundred fifty-two million, six hundred sixty-eight thousand, two hundred twelve".