220444386 has 16 divisors (see below), whose sum is σ = 441192000. Its totient is φ = 73430928.

The previous prime is 220444381. The next prime is 220444417. The reversal of 220444386 is 683444022.

220444386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220444381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (27574500).

Almost surely, 2^220444386 is an apocalyptic number.

220444386 is an abundant number, since it is smaller than the sum of its proper divisors (220747614).

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

220444386 is a wasteful number, since it uses less digits than its factorization.

220444386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25273.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 220444386 is about 14847.3696660385. The cubic root of 220444386 is about 604.0872660924.

The spelling of 220444386 in words is "two hundred twenty million, four hundred forty-four thousand, three hundred eighty-six".