220046864 has 20 divisors (see below), whose sum is σ = 429168960. Its totient is φ = 109293600.

The previous prime is 220046839. The next prime is 220046909. The reversal of 220046864 is 468640022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 220046864.

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, 43124 + ... + 47955.

It is an arithmetic number, because the mean of its divisors is an integer number (21458448).

Almost surely, 2^220046864 is an apocalyptic number.

It is an amenable number.

220046864 is a deficient number, since it is larger than the sum of its proper divisors (209122096).

220046864 is a wasteful number, since it uses less digits than its factorization.

220046864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91238 (or 91232 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 220046864 is about 14833.9766751873. The cubic root of 220046864 is about 603.7239356514.

Adding to 220046864 its reverse (468640022), we get a palindrome (688686886).

The spelling of 220046864 in words is "two hundred twenty million, forty-six thousand, eight hundred sixty-four".