16344889 has 8 divisors (see below), whose sum is σ = 18123840. Its totient is φ = 14614800.

The previous prime is 16344847. The next prime is 16344901. The reversal of 16344889 is 98844361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16344889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16344589) 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, 11509 + ... + 12850.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^16344889 is an apocalyptic number.

It is an amenable number.

16344889 is a deficient number, since it is larger than the sum of its proper divisors (1778951).

16344889 is a wasteful number, since it uses less digits than its factorization.

16344889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24431.

The product of its digits is 165888, while the sum is 43.

The square root of 16344889 is about 4042.8812745368. The cubic root of 16344889 is about 253.7819081911.

The spelling of 16344889 in words is "sixteen million, three hundred forty-four thousand, eight hundred eighty-nine".