14400538 has 4 divisors (see below), whose sum is σ = 21600810. Its totient is φ = 7200268.

The previous prime is 14400509. The next prime is 14400557. The reversal of 14400538 is 83500441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14386849 + 13689 = 3793^2 + 117^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3600133 + ... + 3600136.

Almost surely, 2^14400538 is an apocalyptic number.

14400538 is a deficient number, since it is larger than the sum of its proper divisors (7200272).

14400538 is an equidigital number, since it uses as much as digits as its factorization.

14400538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7200271.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 14400538 is about 3794.8040792642. The cubic root of 14400538 is about 243.2911096229.

Adding to 14400538 its reverse (83500441), we get a palindrome (97900979).

The spelling of 14400538 in words is "fourteen million, four hundred thousand, five hundred thirty-eight".