220755972 has 48 divisors (see below), whose sum is σ = 531965952. Its totient is φ = 71205120.

The previous prime is 220755967. The next prime is 220755989. The reversal of 220755972 is 279557022.

It is a self number, because there is not a number n which added to its sum of digits gives 220755972.

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, 60718 + ... + 64250.

It is an arithmetic number, because the mean of its divisors is an integer number (11082624).

Almost surely, 2^220755972 is an apocalyptic number.

It is an amenable number.

220755972 is an abundant number, since it is smaller than the sum of its proper divisors (311209980).

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

220755972 is a wasteful number, since it uses less digits than its factorization.

220755972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3706 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 220755972 is about 14857.8589305458. The cubic root of 220755972 is about 604.3717467966.

The spelling of 220755972 in words is "two hundred twenty million, seven hundred fifty-five thousand, nine hundred seventy-two".