212257364 has 12 divisors (see below), whose sum is σ = 405218688. Its totient is φ = 96480600.

The previous prime is 212257361. The next prime is 212257373. The reversal of 212257364 is 463752212.

It is a self number, because there is not a number n which added to its sum of digits gives 212257364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212257361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2411972 + ... + 2412059.

It is an arithmetic number, because the mean of its divisors is an integer number (33768224).

Almost surely, 2^212257364 is an apocalyptic number.

It is an amenable number.

212257364 is a deficient number, since it is larger than the sum of its proper divisors (192961324).

212257364 is a wasteful number, since it uses less digits than its factorization.

212257364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824046 (or 4824044 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 212257364 is about 14569.0550139671. The cubic root of 212257364 is about 596.5143863368.

The spelling of 212257364 in words is "two hundred twelve million, two hundred fifty-seven thousand, three hundred sixty-four".