220644030 has 16 divisors (see below), whose sum is σ = 529545744. Its totient is φ = 58838400.

The previous prime is 220644023. The next prime is 220644031. The reversal of 220644030 is 30446022.

It is a junction number, because it is equal to n+sod(n) for n = 220643988 and 220644006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220644031) 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, 3677371 + ... + 3677430.

It is an arithmetic number, because the mean of its divisors is an integer number (33096609).

Almost surely, 2^220644030 is an apocalyptic number.

220644030 is an abundant number, since it is smaller than the sum of its proper divisors (308901714).

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

220644030 is a wasteful number, since it uses less digits than its factorization.

220644030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7354811.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 220644030 is about 14854.0913555828. The cubic root of 220644030 is about 604.2695736138.

The spelling of 220644030 in words is "two hundred twenty million, six hundred forty-four thousand, thirty".