220208730 has 32 divisors (see below), whose sum is σ = 604001664. Its totient is φ = 50333376.

The previous prime is 220208683. The next prime is 220208743. The reversal of 220208730 is 37802022.

It is a self number, because there is not a number n which added to its sum of digits gives 220208730.

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, 524097 + ... + 524516.

It is an arithmetic number, because the mean of its divisors is an integer number (18875052).

Almost surely, 2^220208730 is an apocalyptic number.

220208730 is an abundant number, since it is smaller than the sum of its proper divisors (383792934).

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

220208730 is a wasteful number, since it uses less digits than its factorization.

220208730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048630.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 220208730 is about 14839.4315928879. The cubic root of 220208730 is about 603.8719320450.

The spelling of 220208730 in words is "two hundred twenty million, two hundred eight thousand, seven hundred thirty".