14428239 has 16 divisors (see below), whose sum is σ = 23143680. Its totient is φ = 7810560.

The previous prime is 14428229. The next prime is 14428241. The reversal of 14428239 is 93282441.

14428239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14428239 - 2⁷ = 14428111 is a prime.

It is a super-2 number, since 2×14428239² = 416348161282242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14428229) 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, 17682 + ... + 18479.

It is an arithmetic number, because the mean of its divisors is an integer number (1446480).

Almost surely, 2^14428239 is an apocalyptic number.

14428239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14428239 is a deficient number, since it is larger than the sum of its proper divisors (8715441).

14428239 is a wasteful number, since it uses less digits than its factorization.

14428239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36190.

The product of its digits is 13824, while the sum is 33.

The square root of 14428239 is about 3798.4521847721. The cubic root of 14428239 is about 243.4470086666.

The spelling of 14428239 in words is "fourteen million, four hundred twenty-eight thousand, two hundred thirty-nine".