220307880 has 64 divisors (see below), whose sum is σ = 711768960. Its totient is φ = 54229248.

The previous prime is 220307873. The next prime is 220307891. The reversal of 220307880 is 88703022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69052 + ... + 72171.

It is an arithmetic number, because the mean of its divisors is an integer number (11121390).

Almost surely, 2^220307880 is an apocalyptic number.

220307880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220307880 is an abundant number, since it is smaller than the sum of its proper divisors (491461080).

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

220307880 is a wasteful number, since it uses less digits than its factorization.

220307880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141250 (or 141246 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 220307880 is about 14842.7719783065. The cubic root of 220307880 is about 603.9625504901.

The spelling of 220307880 in words is "two hundred twenty million, three hundred seven thousand, eight hundred eighty".