16909744 has 20 divisors (see below), whose sum is σ = 32949280. Its totient is φ = 8406720.

The previous prime is 16909729. The next prime is 16909757. The reversal of 16909744 is 44790961.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16909697 and 16909706.

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 3 ways as a sum of consecutive naturals, for example, 24 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (1647464).

Almost surely, 2^16909744 is an apocalyptic number.

It is an amenable number.

16909744 is a deficient number, since it is larger than the sum of its proper divisors (16039536).

16909744 is a wasteful number, since it uses less digits than its factorization.

16909744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028 (or 6022 counting only the distinct ones).

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

The square root of 16909744 is about 4112.1459118081. The cubic root of 16909744 is about 256.6723051178.

The spelling of 16909744 in words is "sixteen million, nine hundred nine thousand, seven hundred forty-four".