14400789 has 16 divisors (see below), whose sum is σ = 21071232. Its totient is φ = 8693568.

The previous prime is 14400781. The next prime is 14400797. The reversal of 14400789 is 98700441.

It is an interprime number because it is at equal distance from previous prime (14400781) and next prime (14400797).

It is not a de Polignac number, because 14400789 - 2³ = 14400781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14400781) 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, 1417 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (1316952).

Almost surely, 2^14400789 is an apocalyptic number.

It is an amenable number.

14400789 is a deficient number, since it is larger than the sum of its proper divisors (6670443).

14400789 is a wasteful number, since it uses less digits than its factorization.

14400789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 14400789 is about 3794.8371506561. The cubic root of 14400789 is about 243.2925231282.

The spelling of 14400789 in words is "fourteen million, four hundred thousand, seven hundred eighty-nine".