14297840 has 40 divisors (see below), whose sum is σ = 33407088. Its totient is φ = 5690880.

The previous prime is 14297839. The next prime is 14297849. The reversal of 14297840 is 4879241.

14297840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 14297840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14297849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24755 + ... + 25325.

Almost surely, 2^14297840 is an apocalyptic number.

14297840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14297840 is an abundant number, since it is smaller than the sum of its proper divisors (19109248).

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

14297840 is a wasteful number, since it uses less digits than its factorization.

14297840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 14297840 is about 3781.2484710741. The cubic root of 14297840 is about 242.7113826277.

The spelling of 14297840 in words is "fourteen million, two hundred ninety-seven thousand, eight hundred forty".