212928572 has 24 divisors (see below), whose sum is σ = 389558400. Its totient is φ = 101643696.

The previous prime is 212928563. The next prime is 212928577. The reversal of 212928572 is 275829212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212928577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55079 + ... + 58817.

It is an arithmetic number, because the mean of its divisors is an integer number (16231600).

Almost surely, 2^212928572 is an apocalyptic number.

It is an amenable number.

212928572 is a deficient number, since it is larger than the sum of its proper divisors (176629828).

212928572 is a wasteful number, since it uses less digits than its factorization.

212928572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385 (or 4383 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 212928572 is about 14592.0722311809. The cubic root of 212928572 is about 597.1424979258.

The spelling of 212928572 in words is "two hundred twelve million, nine hundred twenty-eight thousand, five hundred seventy-two".