17312994 has 16 divisors (see below), whose sum is σ = 38473440. Its totient is φ = 5770980.

The previous prime is 17312993. The next prime is 17313011. The reversal of 17312994 is 49921371.

It is a super-2 number, since 2×17312994² = 599479522488072, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (17312993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160252 + ... + 160359.

It is an arithmetic number, because the mean of its divisors is an integer number (2404590).

Almost surely, 2^17312994 is an apocalyptic number.

17312994 is an abundant number, since it is smaller than the sum of its proper divisors (21160446).

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

17312994 is a wasteful number, since it uses less digits than its factorization.

17312994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320622 (or 320616 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 17312994 is about 4160.8886070165. Note that the first 3 decimals coincide. The cubic root of 17312994 is about 258.6966031382.

The spelling of 17312994 in words is "seventeen million, three hundred twelve thousand, nine hundred ninety-four".