220408930 has 32 divisors (see below), whose sum is σ = 477279360. Its totient is φ = 71591040.

The previous prime is 220408901. The next prime is 220408933. The reversal of 220408930 is 39804022.

220408930 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 (220408933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81531 + ... + 84190.

It is an arithmetic number, because the mean of its divisors is an integer number (14914980).

Almost surely, 2^220408930 is an apocalyptic number.

220408930 is an abundant number, since it is smaller than the sum of its proper divisors (256870430).

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

220408930 is a wasteful number, since it uses less digits than its factorization.

220408930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165754.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 220408930 is about 14846.1756018175. The cubic root of 220408930 is about 604.0548774752.

The spelling of 220408930 in words is "two hundred twenty million, four hundred eight thousand, nine hundred thirty".