14443999 has 16 divisors (see below), whose sum is σ = 15792192. Its totient is φ = 13160448.

The previous prime is 14443987. The next prime is 14444057. The reversal of 14443999 is 99934441.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-14443999 is a prime.

It is a super-2 number, since 2×14443999² = 417258214224002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14443939) 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, 127767 + ... + 127879.

It is an arithmetic number, because the mean of its divisors is an integer number (987012).

Almost surely, 2^14443999 is an apocalyptic number.

14443999 is a deficient number, since it is larger than the sum of its proper divisors (1348193).

14443999 is a wasteful number, since it uses less digits than its factorization.

14443999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its digits is 139968, while the sum is 43.

The square root of 14443999 is about 3800.5261477853. The cubic root of 14443999 is about 243.5356156627.

The spelling of 14443999 in words is "fourteen million, four hundred forty-three thousand, nine hundred ninety-nine".