220455800 has 24 divisors (see below), whose sum is σ = 512560200. Its totient is φ = 88182240.

The previous prime is 220455791. The next prime is 220455827. The reversal of 220455800 is 8554022.

It is a self number, because there is not a number n which added to its sum of digits gives 220455800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550940 + ... + 551339.

It is an arithmetic number, because the mean of its divisors is an integer number (21356675).

Almost surely, 2^220455800 is an apocalyptic number.

220455800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220455800 is an abundant number, since it is smaller than the sum of its proper divisors (292104400).

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

220455800 is a wasteful number, since it uses less digits than its factorization.

220455800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102295 (or 1102286 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 220455800 is about 14847.7540389111. The cubic root of 220455800 is about 604.0976919012.

The spelling of 220455800 in words is "two hundred twenty million, four hundred fifty-five thousand, eight hundred".