220913379 has 8 divisors (see below), whose sum is σ = 327279120. Its totient is φ = 147275568.

The previous prime is 220913369. The next prime is 220913417. The reversal of 220913379 is 973319022.

It is not a de Polignac number, because 220913379 - 2⁸ = 220913123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220913369) 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 7 ways as a sum of consecutive naturals, for example, 4090962 + ... + 4091015.

It is an arithmetic number, because the mean of its divisors is an integer number (40909890).

Almost surely, 2^220913379 is an apocalyptic number.

220913379 is a deficient number, since it is larger than the sum of its proper divisors (106365741).

220913379 is an equidigital number, since it uses as much as digits as its factorization.

220913379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8181986 (or 8181980 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 220913379 is about 14863.1550822832. The cubic root of 220913379 is about 604.5153589802.

The spelling of 220913379 in words is "two hundred twenty million, nine hundred thirteen thousand, three hundred seventy-nine".