16299943 has 16 divisors (see below), whose sum is σ = 18905760. Its totient is φ = 13910400.

The previous prime is 16299931. The next prime is 16299947. The reversal of 16299943 is 34999261.

It is a cyclic number.

It is not a de Polignac number, because 16299943 - 2⁹ = 16299431 is a prime.

It is a Duffinian number.

Its product of digits (104976) is a multiple of the sum of its prime divisors (1458).

It is a self number, because there is not a number n which added to its sum of digits gives 16299943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16299947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11113 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (1181610).

Almost surely, 2^16299943 is an apocalyptic number.

16299943 is a deficient number, since it is larger than the sum of its proper divisors (2605817).

16299943 is a wasteful number, since it uses less digits than its factorization.

16299943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its digits is 104976, while the sum is 43.

The square root of 16299943 is about 4037.3187885031. The cubic root of 16299943 is about 253.5490738778.

The spelling of 16299943 in words is "sixteen million, two hundred ninety-nine thousand, nine hundred forty-three".