213888232 has 16 divisors (see below), whose sum is σ = 401220000. Its totient is φ = 106896240.

The previous prime is 213888229. The next prime is 213888307. The reversal of 213888232 is 232888312.

It is a junction number, because it is equal to n+sod(n) for n = 213888191 and 213888200.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19269 + ... + 28267.

It is an arithmetic number, because the mean of its divisors is an integer number (25076250).

Almost surely, 2^213888232 is an apocalyptic number.

It is an amenable number.

213888232 is a deficient number, since it is larger than the sum of its proper divisors (187331768).

213888232 is a wasteful number, since it uses less digits than its factorization.

213888232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976 (or 11972 counting only the distinct ones).

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

The square root of 213888232 is about 14624.9181878054. The cubic root of 213888232 is about 598.0382521587.

The spelling of 213888232 in words is "two hundred thirteen million, eight hundred eighty-eight thousand, two hundred thirty-two".