220195998 has 48 divisors (see below), whose sum is σ = 522902016. Its totient is φ = 66413520.

The previous prime is 220195967. The next prime is 220196021. The reversal of 220195998 is 899591022.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41661 + ... + 46647.

It is an arithmetic number, because the mean of its divisors is an integer number (10893792).

Almost surely, 2^220195998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220195998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261451008).

220195998 is an abundant number, since it is smaller than the sum of its proper divisors (302706018).

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

220195998 is a wasteful number, since it uses less digits than its factorization.

220195998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 220195998 is about 14839.0025945142. The cubic root of 220195998 is about 603.8602936241.

The spelling of 220195998 in words is "two hundred twenty million, one hundred ninety-five thousand, nine hundred ninety-eight".