220628636 has 24 divisors (see below), whose sum is σ = 402358320. Its totient is φ = 105725312.

The previous prime is 220628623. The next prime is 220628641. The reversal of 220628636 is 636826022.

It is a happy number.

220628636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220628596 and 220628605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8951 + ... + 22833.

It is an arithmetic number, because the mean of its divisors is an integer number (16764930).

Almost surely, 2^220628636 is an apocalyptic number.

It is an amenable number.

220628636 is a deficient number, since it is larger than the sum of its proper divisors (181729684).

220628636 is a wasteful number, since it uses less digits than its factorization.

220628636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14053 (or 14051 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 220628636 is about 14853.5731728093. The cubic root of 220628636 is about 604.2555202958.

The spelling of 220628636 in words is "two hundred twenty million, six hundred twenty-eight thousand, six hundred thirty-six".