220931084 has 24 divisors (see below), whose sum is σ = 427123200. Its totient is φ = 99150480.

The previous prime is 220931071. The next prime is 220931101. The reversal of 220931084 is 480139022.

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 7 ways as a sum of consecutive naturals, for example, 28304 + ... + 35255.

It is an arithmetic number, because the mean of its divisors is an integer number (17796800).

Almost surely, 2^220931084 is an apocalyptic number.

It is an amenable number.

220931084 is a deficient number, since it is larger than the sum of its proper divisors (206192116).

220931084 is a wasteful number, since it uses less digits than its factorization.

220931084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63653 (or 63651 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 220931084 is about 14863.7506706753. The cubic root of 220931084 is about 604.5315080829.

The spelling of 220931084 in words is "two hundred twenty million, nine hundred thirty-one thousand, eighty-four".