212652330 has 32 divisors (see below), whose sum is σ = 556763328. Its totient is φ = 51552000.

The previous prime is 212652311. The next prime is 212652361. The reversal of 212652330 is 33256212.

It is a self number, because there is not a number n which added to its sum of digits gives 212652330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321871 + ... + 322530.

It is an arithmetic number, because the mean of its divisors is an integer number (17398854).

Almost surely, 2^212652330 is an apocalyptic number.

212652330 is an abundant number, since it is smaller than the sum of its proper divisors (344110998).

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

212652330 is a wasteful number, since it uses less digits than its factorization.

212652330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644422.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 212652330 is about 14582.6036769844. The cubic root of 212652330 is about 596.8841527246.

The spelling of 212652330 in words is "two hundred twelve million, six hundred fifty-two thousand, three hundred thirty".