213288832 has 32 divisors (see below), whose sum is σ = 447280200. Its totient is φ = 101030400.

The previous prime is 213288809. The next prime is 213288833. The reversal of 213288832 is 238882312.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 213288791 and 213288800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213288833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41419 + ... + 46282.

Almost surely, 2^213288832 is an apocalyptic number.

It is an amenable number.

213288832 is an abundant number, since it is smaller than the sum of its proper divisors (233991368).

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

213288832 is an equidigital number, since it uses as much as digits as its factorization.

213288832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87734 (or 87722 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 213288832 is about 14604.4113883443. The cubic root of 213288832 is about 597.4790823837.

The spelling of 213288832 in words is "two hundred thirteen million, two hundred eighty-eight thousand, eight hundred thirty-two".