212522328 has 24 divisors (see below), whose sum is σ = 575581500. Its totient is φ = 70840752.

The previous prime is 212522327. The next prime is 212522333. The reversal of 212522328 is 823225212.

212522328 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212522327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1475778 + ... + 1475921.

Almost surely, 2^212522328 is an apocalyptic number.

It is an amenable number.

212522328 is an abundant number, since it is smaller than the sum of its proper divisors (363059172).

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

212522328 is a wasteful number, since it uses less digits than its factorization.

212522328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951711 (or 2951704 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 212522328 is about 14578.1455610787. The cubic root of 212522328 is about 596.7624956966.

The spelling of 212522328 in words is "two hundred twelve million, five hundred twenty-two thousand, three hundred twenty-eight".