220209980 has 12 divisors (see below), whose sum is σ = 462441000. Its totient is φ = 88083984.

The previous prime is 220209971. The next prime is 220210033. The reversal of 220209980 is 89902022.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5505230 + ... + 5505269.

It is an arithmetic number, because the mean of its divisors is an integer number (38536750).

Almost surely, 2^220209980 is an apocalyptic number.

220209980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220209980 is an abundant number, since it is smaller than the sum of its proper divisors (242231020).

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

220209980 is a wasteful number, since it uses less digits than its factorization.

220209980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010508 (or 11010506 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 220209980 is about 14839.4737103443. The cubic root of 220209980 is about 603.8730746556.

The spelling of 220209980 in words is "two hundred twenty million, two hundred nine thousand, nine hundred eighty".