213928032 has 24 divisors (see below), whose sum is σ = 561561336. Its totient is φ = 71309312.

The previous prime is 213928031. The next prime is 213928061. The reversal of 213928032 is 230829312.

It is a happy number.

213928032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213928031) 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, 1114113 + ... + 1114304.

It is an arithmetic number, because the mean of its divisors is an integer number (23398389).

Almost surely, 2^213928032 is an apocalyptic number.

It is an amenable number.

213928032 is an abundant number, since it is smaller than the sum of its proper divisors (347633304).

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

213928032 is a wasteful number, since it uses less digits than its factorization.

213928032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228430 (or 2228422 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 213928032 is about 14626.2788158848. The cubic root of 213928032 is about 598.0753438772.

It can be divided in two parts, 2139280 and 32, that added together give a palindrome (2139312).

The spelling of 213928032 in words is "two hundred thirteen million, nine hundred twenty-eight thousand, thirty-two".