213642032 has 20 divisors (see below), whose sum is σ = 431929200. Its totient is φ = 102176448.

The previous prime is 213642007. The next prime is 213642041. The reversal of 213642032 is 230246312.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 213641989 and 213642007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289907 + ... + 290642.

It is an arithmetic number, because the mean of its divisors is an integer number (21596460).

Almost surely, 2^213642032 is an apocalyptic number.

It is an amenable number.

213642032 is an abundant number, since it is smaller than the sum of its proper divisors (218287168).

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

213642032 is a wasteful number, since it uses less digits than its factorization.

213642032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580580 (or 580574 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 213642032 is about 14616.4986231313. The cubic root of 213642032 is about 597.8087030686.

Adding to 213642032 its reverse (230246312), we get a palindrome (443888344).

The spelling of 213642032 in words is "two hundred thirteen million, six hundred forty-two thousand, thirty-two".