14043440 has 20 divisors (see below), whose sum is σ = 32651184. Its totient is φ = 5617344.

The previous prime is 14043439. The next prime is 14043457. The reversal of 14043440 is 4434041.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87692 + ... + 87851.

Almost surely, 2^14043440 is an apocalyptic number.

14043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14043440 is an abundant number, since it is smaller than the sum of its proper divisors (18607744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14043440 is a wasteful number, since it uses less digits than its factorization.

14043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175556 (or 175550 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 14043440 is about 3747.4578049659. The cubic root of 14043440 is about 241.2632466081.

Adding to 14043440 its reverse (4434041), we get a palindrome (18477481).

The spelling of 14043440 in words is "fourteen million, forty-three thousand, four hundred forty".