220930380 has 72 divisors (see below), whose sum is σ = 731085264. Its totient is φ = 53558400.

The previous prime is 220930379. The next prime is 220930393. The reversal of 220930380 is 83039022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53811 + ... + 57770.

It is an arithmetic number, because the mean of its divisors is an integer number (10153962).

Almost surely, 2^220930380 is an apocalyptic number.

220930380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220930380 is an abundant number, since it is smaller than the sum of its proper divisors (510154884).

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

220930380 is a wasteful number, since it uses less digits than its factorization.

220930380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111607 (or 111602 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 220930380 is about 14863.7269888814. The cubic root of 220930380 is about 604.5308659662.

The spelling of 220930380 in words is "two hundred twenty million, nine hundred thirty thousand, three hundred eighty".