14189840 has 40 divisors (see below), whose sum is σ = 37705920. Its totient is φ = 4864896.

The previous prime is 14189809. The next prime is 14189869. The reversal of 14189840 is 4898141.

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

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 14189840.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12110 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (942648).

Almost surely, 2^14189840 is an apocalyptic number.

14189840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14189840 is an abundant number, since it is smaller than the sum of its proper divisors (23516080).

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

14189840 is a wasteful number, since it uses less digits than its factorization.

14189840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25359 (or 25353 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 14189840 is about 3766.9404030327. The cubic root of 14189840 is about 242.0987234661.

The spelling of 14189840 in words is "fourteen million, one hundred eighty-nine thousand, eight hundred forty".