212323044 has 24 divisors (see below), whose sum is σ = 496054048. Its totient is φ = 70683840.

The previous prime is 212323039. The next prime is 212323087. The reversal of 212323044 is 440323212.

It is a self number, because there is not a number n which added to its sum of digits gives 212323044.

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, 1177 + ... + 20640.

Almost surely, 2^212323044 is an apocalyptic number.

It is an amenable number.

212323044 is an abundant number, since it is smaller than the sum of its proper divisors (283731004).

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

212323044 is a wasteful number, since it uses less digits than its factorization.

212323044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22635 (or 22633 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 212323044 is about 14571.3089322820. The cubic root of 212323044 is about 596.5759076016.

Adding to 212323044 its reverse (440323212), we get a palindrome (652646256).

The spelling of 212323044 in words is "two hundred twelve million, three hundred twenty-three thousand, forty-four".