220776198 has 16 divisors (see below), whose sum is σ = 443994096. Its totient is φ = 73185120.

The previous prime is 220776191. The next prime is 220776211. The reversal of 220776198 is 891677022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220776191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100561 + ... + 102732.

It is an arithmetic number, because the mean of its divisors is an integer number (27749631).

Almost surely, 2^220776198 is an apocalyptic number.

220776198 is an abundant number, since it is smaller than the sum of its proper divisors (223217898).

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

220776198 is a wasteful number, since it uses less digits than its factorization.

220776198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203479.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 220776198 is about 14858.5395648428. The cubic root of 220776198 is about 604.3902040544.

The spelling of 220776198 in words is "two hundred twenty million, seven hundred seventy-six thousand, one hundred ninety-eight".