212645364 has 24 divisors (see below), whose sum is σ = 509583648. Its totient is φ = 68965920.

The previous prime is 212645339. The next prime is 212645369. The reversal of 212645364 is 463546212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212645369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239022 + ... + 239909.

It is an arithmetic number, because the mean of its divisors is an integer number (21232652).

Almost surely, 2^212645364 is an apocalyptic number.

It is an amenable number.

212645364 is an abundant number, since it is smaller than the sum of its proper divisors (296938284).

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

212645364 is a wasteful number, since it uses less digits than its factorization.

212645364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478975 (or 478973 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 212645364 is about 14582.3648287923. The cubic root of 212645364 is about 596.8776351373.

The spelling of 212645364 in words is "two hundred twelve million, six hundred forty-five thousand, three hundred sixty-four".