220901879 has 12 divisors (see below), whose sum is σ = 246741192. Its totient is φ = 196131600.

The previous prime is 220901861. The next prime is 220901899. The reversal of 220901879 is 978109022.

It is not a de Polignac number, because 220901879 - 2²⁰ = 219853303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220901839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14909 + ... + 25769.

It is an arithmetic number, because the mean of its divisors is an integer number (20561766).

Almost surely, 2^220901879 is an apocalyptic number.

220901879 is a deficient number, since it is larger than the sum of its proper divisors (25839313).

220901879 is a wasteful number, since it uses less digits than its factorization.

220901879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10958 (or 10915 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 220901879 is about 14862.7682145689. The cubic root of 220901879 is about 604.5048691263.

The spelling of 220901879 in words is "two hundred twenty million, nine hundred one thousand, eight hundred seventy-nine".