17994016 has 12 divisors (see below), whose sum is σ = 35425782. Its totient is φ = 8996992.

The previous prime is 17994013. The next prime is 17994017. The reversal of 17994016 is 61049971.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 7728400 = 3204^2 + 2780^2 .

It is a super-2 number, since 2×17994016² = 647569223616512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17994013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281125 + ... + 281188.

Almost surely, 2^17994016 is an apocalyptic number.

17994016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

17994016 is a deficient number, since it is larger than the sum of its proper divisors (17431766).

17994016 is an equidigital number, since it uses as much as digits as its factorization.

17994016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562323 (or 562315 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 17994016 is about 4241.9354073347. The cubic root of 17994016 is about 262.0450945048.

The spelling of 17994016 in words is "seventeen million, nine hundred ninety-four thousand, sixteen".