213632224 has 36 divisors (see below), whose sum is σ = 455441616. Its totient is φ = 98596992.

The previous prime is 213632207. The next prime is 213632231. The reversal of 213632224 is 422236312.

213632224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14344 + ... + 25159.

It is an arithmetic number, because the mean of its divisors is an integer number (12651156).

Almost surely, 2^213632224 is an apocalyptic number.

It is an amenable number.

213632224 is an abundant number, since it is smaller than the sum of its proper divisors (241809392).

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

213632224 is a wasteful number, since it uses less digits than its factorization.

213632224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39539 (or 39518 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 213632224 is about 14616.1631080116. The cubic root of 213632224 is about 597.7995547479.

Adding to 213632224 its reverse (422236312), we get a palindrome (635868536).

The spelling of 213632224 in words is "two hundred thirteen million, six hundred thirty-two thousand, two hundred twenty-four".