213284572 has 24 divisors (see below), whose sum is σ = 378000896. Its totient is φ = 105290928.

The previous prime is 213284569. The next prime is 213284579. The reversal of 213284572 is 275482312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213284579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200113 + ... + 201175.

Almost surely, 2^213284572 is an apocalyptic number.

It is an amenable number.

213284572 is a deficient number, since it is larger than the sum of its proper divisors (164716324).

213284572 is a wasteful number, since it uses less digits than its factorization.

213284572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1655 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 213284572 is about 14604.2655412725. The cubic root of 213284572 is about 597.4751045573.

The spelling of 213284572 in words is "two hundred thirteen million, two hundred eighty-four thousand, five hundred seventy-two".