213264774 has 12 divisors (see below), whose sum is σ = 462073716. Its totient is φ = 71088252.

The previous prime is 213264773. The next prime is 213264791. The reversal of 213264774 is 477462312.

213264774 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 647 + 7 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213264773) 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 5 ways as a sum of consecutive naturals, for example, 5924004 + ... + 5924039.

It is an arithmetic number, because the mean of its divisors is an integer number (38506143).

Almost surely, 2^213264774 is an apocalyptic number.

213264774 is an abundant number, since it is smaller than the sum of its proper divisors (248808942).

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

213264774 is a wasteful number, since it uses less digits than its factorization.

213264774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848051 (or 11848048 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 213264774 is about 14603.5877098746. The cubic root of 213264774 is about 597.4566172408.

The spelling of 213264774 in words is "two hundred thirteen million, two hundred sixty-four thousand, seven hundred seventy-four".