220949090 has 16 divisors (see below), whose sum is σ = 410538240. Its totient is φ = 85528560.

The previous prime is 220949087. The next prime is 220949117. The reversal of 220949090 is 90949022.

220949090 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 220949090.

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, 356060 + ... + 356679.

It is an arithmetic number, because the mean of its divisors is an integer number (25658640).

Almost surely, 2^220949090 is an apocalyptic number.

220949090 is a deficient number, since it is larger than the sum of its proper divisors (189589150).

220949090 is a wasteful number, since it uses less digits than its factorization.

220949090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712777.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 220949090 is about 14864.3563600985. The cubic root of 220949090 is about 604.5479308491.

The spelling of 220949090 in words is "two hundred twenty million, nine hundred forty-nine thousand, ninety".