220633994 has 16 divisors (see below), whose sum is σ = 378628800. Its totient is φ = 94457664.

The previous prime is 220633951. The next prime is 220634017. The reversal of 220633994 is 499336022.

220633994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6317 + ... + 21935.

It is an arithmetic number, because the mean of its divisors is an integer number (23664300).

Almost surely, 2^220633994 is an apocalyptic number.

220633994 is a deficient number, since it is larger than the sum of its proper divisors (157994806).

220633994 is a wasteful number, since it uses less digits than its factorization.

220633994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16637.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 220633994 is about 14853.7535323567. The cubic root of 220633994 is about 604.2604117353.

The spelling of 220633994 in words is "two hundred twenty million, six hundred thirty-three thousand, nine hundred ninety-four".