220884540 has 48 divisors (see below), whose sum is σ = 620057760. Its totient is φ = 58752000.

The previous prime is 220884539. The next prime is 220884569. The reversal of 220884540 is 45488022.

It is a happy number.

It is a super-2 number, since 2×220884540² = 97579960022023200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20040 + ... + 29040.

It is an arithmetic number, because the mean of its divisors is an integer number (12917870).

Almost surely, 2^220884540 is an apocalyptic number.

220884540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220884540 is an abundant number, since it is smaller than the sum of its proper divisors (399173220).

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

220884540 is a wasteful number, since it uses less digits than its factorization.

220884540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9422 (or 9420 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 220884540 is about 14862.1848999398. The cubic root of 220884540 is about 604.4890524747.

The spelling of 220884540 in words is "two hundred twenty million, eight hundred eighty-four thousand, five hundred forty".