212656652 has 48 divisors (see below), whose sum is σ = 428064000. Its totient is φ = 91687680.

The previous prime is 212656651. The next prime is 212656663. The reversal of 212656652 is 256656212.

212656652 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212656651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44474 + ... + 49022.

It is an arithmetic number, because the mean of its divisors is an integer number (8918000).

Almost surely, 2^212656652 is an apocalyptic number.

It is an amenable number.

212656652 is an abundant number, since it is smaller than the sum of its proper divisors (215407348).

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

212656652 is a wasteful number, since it uses less digits than its factorization.

212656652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4624 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 212656652 is about 14582.7518665031. The cubic root of 212656652 is about 596.8881964390. Note that the first 3 decimals are identical.

The spelling of 212656652 in words is "two hundred twelve million, six hundred fifty-six thousand, six hundred fifty-two".