17220090 has 16 divisors (see below), whose sum is σ = 41328288. Its totient is φ = 4592016.

The previous prime is 17220089. The next prime is 17220101. The reversal of 17220090 is 9002271.

It is a happy number.

It is a super-3 number, since 3×17220090³ (a number of 23 digits) contains 333 as substring.

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, 286972 + ... + 287031.

It is an arithmetic number, because the mean of its divisors is an integer number (2583018).

Almost surely, 2^17220090 is an apocalyptic number.

17220090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17220090 is an abundant number, since it is smaller than the sum of its proper divisors (24108198).

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

17220090 is a wasteful number, since it uses less digits than its factorization.

17220090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574013.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 17220090 is about 4149.7096283957. The cubic root of 17220090 is about 258.2330386481.

The spelling of 17220090 in words is "seventeen million, two hundred twenty thousand, ninety".