220219979 has 8 divisors (see below), whose sum is σ = 257818848. Its totient is φ = 184155840.

The previous prime is 220219949. The next prime is 220219991. The reversal of 220219979 is 979912022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220219979 - 2⁸ = 220219723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (220219949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383372 + ... + 383945.

It is an arithmetic number, because the mean of its divisors is an integer number (32227356).

Almost surely, 2^220219979 is an apocalyptic number.

220219979 is a deficient number, since it is larger than the sum of its proper divisors (37598869).

220219979 is an equidigital number, since it uses as much as digits as its factorization.

220219979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767365.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 220219979 is about 14839.8106119991. The cubic root of 220219979 is about 603.8822144707.

The spelling of 220219979 in words is "two hundred twenty million, two hundred nineteen thousand, nine hundred seventy-nine".