213004412 has 48 divisors (see below), whose sum is σ = 393382080. Its totient is φ = 100818432.

The previous prime is 213004409. The next prime is 213004417. The reversal of 213004412 is 214400312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213004417) 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 15 ways as a sum of consecutive naturals, for example, 1356638 + ... + 1356794.

It is an arithmetic number, because the mean of its divisors is an integer number (8195460).

Almost surely, 2^213004412 is an apocalyptic number.

It is an amenable number.

213004412 is a deficient number, since it is larger than the sum of its proper divisors (180377668).

213004412 is a wasteful number, since it uses less digits than its factorization.

213004412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 213004412 is about 14594.6706711731. The cubic root of 213004412 is about 597.2133854084.

Adding to 213004412 its reverse (214400312), we get a palindrome (427404724).

The spelling of 213004412 in words is "two hundred thirteen million, four thousand, four hundred twelve".