17994028 has 12 divisors (see below), whose sum is σ = 33911920. Its totient is φ = 8304912.

The previous prime is 17994023. The next prime is 17994077. The reversal of 17994028 is 82049971.

It is not an unprimeable number, because it can be changed into a prime (17994023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172968 + ... + 173071.

Almost surely, 2^17994028 is an apocalyptic number.

It is an amenable number.

17994028 is a deficient number, since it is larger than the sum of its proper divisors (15917892).

17994028 is a wasteful number, since it uses less digits than its factorization.

17994028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346056 (or 346054 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 17994028 is about 4241.9368217832. The cubic root of 17994028 is about 262.0451527564.

The spelling of 17994028 in words is "seventeen million, nine hundred ninety-four thousand, twenty-eight".