16981368 has 32 divisors (see below), whose sum is σ = 44951760. Its totient is φ = 5327360.

The previous prime is 16981357. The next prime is 16981369. The reversal of 16981368 is 86318961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16981369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20403 + ... + 21218.

Almost surely, 2^16981368 is an apocalyptic number.

It is an amenable number.

16981368 is an abundant number, since it is smaller than the sum of its proper divisors (27970392).

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

16981368 is a wasteful number, since it uses less digits than its factorization.

16981368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41647 (or 41643 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 16981368 is about 4120.8455443028. The cubic root of 16981368 is about 257.0341872390.

The spelling of 16981368 in words is "sixteen million, nine hundred eighty-one thousand, three hundred sixty-eight".