17994245 has 16 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 13442304.

The previous prime is 17994209. The next prime is 17994259. The reversal of 17994245 is 54249971.

It is a cyclic number.

It is not a de Polignac number, because 17994245 - 2¹² = 17990149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11054 + ... + 12576.

It is an arithmetic number, because the mean of its divisors is an integer number (1440180).

Almost surely, 2^17994245 is an apocalyptic number.

It is an amenable number.

17994245 is a deficient number, since it is larger than the sum of its proper divisors (5048635).

17994245 is a wasteful number, since it uses less digits than its factorization.

17994245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its digits is 90720, while the sum is 41.

The square root of 17994245 is about 4241.9623996448. The cubic root of 17994245 is about 262.0462061350.

The spelling of 17994245 in words is "seventeen million, nine hundred ninety-four thousand, two hundred forty-five".