220897630 has 16 divisors (see below), whose sum is σ = 410442624. Its totient is φ = 85508640.

The previous prime is 220897601. The next prime is 220897637. The reversal of 220897630 is 36798022.

220897630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220897630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220897637) 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, 355977 + ... + 356596.

It is an arithmetic number, because the mean of its divisors is an integer number (25652664).

Almost surely, 2^220897630 is an apocalyptic number.

220897630 is a deficient number, since it is larger than the sum of its proper divisors (189544994).

220897630 is a wasteful number, since it uses less digits than its factorization.

220897630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712611.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 220897630 is about 14862.6252728110. The cubic root of 220897630 is about 604.5009932611.

The spelling of 220897630 in words is "two hundred twenty million, eight hundred ninety-seven thousand, six hundred thirty".