16909043 has 8 divisors (see below), whose sum is σ = 17536896. Its totient is φ = 16286400.

The previous prime is 16909027. The next prime is 16909051. The reversal of 16909043 is 34090961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16909043 - 2⁴ = 16909027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16909073) 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, 6053 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (2192112).

Almost surely, 2^16909043 is an apocalyptic number.

16909043 is a deficient number, since it is larger than the sum of its proper divisors (627853).

16909043 is a wasteful number, since it uses less digits than its factorization.

16909043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 16909043 is about 4112.0606756224. The cubic root of 16909043 is about 256.6687582521.

The spelling of 16909043 in words is "sixteen million, nine hundred nine thousand, forty-three".