220732980 has 48 divisors (see below), whose sum is σ = 665597184. Its totient is φ = 54334080.

The previous prime is 220732979. The next prime is 220732997. The reversal of 220732980 is 89237022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140716 + ... + 142275.

It is an arithmetic number, because the mean of its divisors is an integer number (13866608).

Almost surely, 2^220732980 is an apocalyptic number.

220732980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220732980 is an abundant number, since it is smaller than the sum of its proper divisors (444864204).

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

220732980 is a wasteful number, since it uses less digits than its factorization.

220732980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283016 (or 283014 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 220732980 is about 14857.0851784595. The cubic root of 220732980 is about 604.3507640533.

The spelling of 220732980 in words is "two hundred twenty million, seven hundred thirty-two thousand, nine hundred eighty".