220718084 has 6 divisors (see below), whose sum is σ = 386256654. Its totient is φ = 110359040.

The previous prime is 220718009. The next prime is 220718093. The reversal of 220718084 is 480817022.

It can be written as a sum of positive squares in only one way, i.e., 193989184 + 26728900 = 13928^2 + 5170^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220718084.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27589757 + ... + 27589764.

It is an arithmetic number, because the mean of its divisors is an integer number (64376109).

Almost surely, 2^220718084 is an apocalyptic number.

It is an amenable number.

220718084 is a deficient number, since it is larger than the sum of its proper divisors (165538570).

220718084 is a wasteful number, since it uses less digits than its factorization.

220718084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55179525 (or 55179523 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 220718084 is about 14856.5838603631. The cubic root of 220718084 is about 604.3371690278.

The spelling of 220718084 in words is "two hundred twenty million, seven hundred eighteen thousand, eighty-four".