220938474 has 16 divisors (see below), whose sum is σ = 442209600. Its totient is φ = 73590720.

The previous prime is 220938469. The next prime is 220938481. The reversal of 220938474 is 474839022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4767 + ... + 21554.

It is an arithmetic number, because the mean of its divisors is an integer number (27638100).

Almost surely, 2^220938474 is an apocalyptic number.

220938474 is an abundant number, since it is smaller than the sum of its proper divisors (221271126).

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

220938474 is a wasteful number, since it uses less digits than its factorization.

220938474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27725.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 220938474 is about 14863.9992599569. Note that the first 3 decimals coincide. The cubic root of 220938474 is about 604.5382484020.

The spelling of 220938474 in words is "two hundred twenty million, nine hundred thirty-eight thousand, four hundred seventy-four".