220474806 has 16 divisors (see below), whose sum is σ = 449270064. Its totient is φ = 72104864.

The previous prime is 220474789. The next prime is 220474811. The reversal of 220474806 is 608474022.

220474806 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346341 + ... + 346976.

It is an arithmetic number, because the mean of its divisors is an integer number (28079379).

Almost surely, 2^220474806 is an apocalyptic number.

220474806 is an abundant number, since it is smaller than the sum of its proper divisors (228795258).

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

220474806 is a wasteful number, since it uses less digits than its factorization.

220474806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693375.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 220474806 is about 14848.3940545771. The cubic root of 220474806 is about 604.1150516180.

The spelling of 220474806 in words is "two hundred twenty million, four hundred seventy-four thousand, eight hundred six".