16990744 has 32 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 8040736.

The previous prime is 16990703. The next prime is 16990751. The reversal of 16990744 is 44709961.

It is a happy number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 16990697 and 16990706.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 19257 + ... + 20119.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^16990744 is an apocalyptic number.

It is an amenable number.

16990744 is a deficient number, since it is larger than the sum of its proper divisors (16601576).

16990744 is a wasteful number, since it uses less digits than its factorization.

16990744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16990744 is about 4121.9830179175. The cubic root of 16990744 is about 257.0814843538.

The spelling of 16990744 in words is "sixteen million, nine hundred ninety thousand, seven hundred forty-four".