220813072 has 20 divisors (see below), whose sum is σ = 431753740. Its totient is φ = 109392768.

The previous prime is 220813069. The next prime is 220813091. The reversal of 220813072 is 270318022.

It can be written as a sum of positive squares in 2 ways, for example, as 75272976 + 145540096 = 8676^2 + 12064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61563 + ... + 65050.

It is an arithmetic number, because the mean of its divisors is an integer number (21587687).

Almost surely, 2^220813072 is an apocalyptic number.

It is an amenable number.

220813072 is a deficient number, since it is larger than the sum of its proper divisors (210940668).

220813072 is a wasteful number, since it uses less digits than its factorization.

220813072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126730 (or 126724 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 220813072 is about 14859.7803483093. The cubic root of 220813072 is about 604.4238505615.

The spelling of 220813072 in words is "two hundred twenty million, eight hundred thirteen thousand, seventy-two".