220564443 has 32 divisors (see below), whose sum is σ = 342904320. Its totient is φ = 124623360.

The previous prime is 220564441. The next prime is 220564481. The reversal of 220564443 is 344465022.

It is not a de Polignac number, because 220564443 - 2¹ = 220564441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220564443.

It is not an unprimeable number, because it can be changed into a prime (220564441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59346 + ... + 62952.

It is an arithmetic number, because the mean of its divisors is an integer number (10715760).

Almost surely, 2^220564443 is an apocalyptic number.

220564443 is a deficient number, since it is larger than the sum of its proper divisors (122339877).

220564443 is a wasteful number, since it uses less digits than its factorization.

220564443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 220564443 is about 14851.4121550780. The cubic root of 220564443 is about 604.1969108939.

The spelling of 220564443 in words is "two hundred twenty million, five hundred sixty-four thousand, four hundred forty-three".