14390818 has 16 divisors (see below), whose sum is σ = 23357880. Its totient is φ = 6610176.

The previous prime is 14390813. The next prime is 14390819. The reversal of 14390818 is 81809341.

It is a happy number.

14390818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14386849 + 3969 = 3793^2 + 63^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (14390813) 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, 4746 + ... + 7162.

Almost surely, 2^14390818 is an apocalyptic number.

14390818 is a deficient number, since it is larger than the sum of its proper divisors (8967062).

14390818 is a wasteful number, since it uses less digits than its factorization.

14390818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 14390818 is about 3793.5231645530. The cubic root of 14390818 is about 243.2363588480.

The spelling of 14390818 in words is "fourteen million, three hundred ninety thousand, eight hundred eighteen".