220090 has 16 divisors (see below), whose sum is σ = 426888. Its totient is φ = 81216.

The previous prime is 220063. The next prime is 220123. The reversal of 220090 is 90022.

It can be written as a sum of positive squares in 4 ways, for example, as 124609 + 95481 = 353^2 + 309^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 220090.

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, 717 + ... + 976.

2²²⁰⁰⁹⁰ is an apocalyptic number.

220090 is a deficient number, since it is larger than the sum of its proper divisors (206798).

220090 is a wasteful number, since it uses less digits than its factorization.

220090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 220090 is about 469.1375064946. The cubic root of 220090 is about 60.3763382603.

The spelling of 220090 in words is "two hundred twenty thousand, ninety".