220256880 has 40 divisors (see below), whose sum is σ = 682797072. Its totient is φ = 58735104.

The previous prime is 220256867. The next prime is 220256887. The reversal of 220256880 is 88652022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220256887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458629 + ... + 459108.

Almost surely, 2^220256880 is an apocalyptic number.

220256880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220256880 is an abundant number, since it is smaller than the sum of its proper divisors (462540192).

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

220256880 is a wasteful number, since it uses less digits than its factorization.

220256880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917753 (or 917747 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 220256880 is about 14841.0538709352. The cubic root of 220256880 is about 603.9159422810.

The spelling of 220256880 in words is "two hundred twenty million, two hundred fifty-six thousand, eight hundred eighty".