14390728 has 32 divisors (see below), whose sum is σ = 30456000. Its totient is φ = 6314560.

The previous prime is 14390707. The next prime is 14390731. The reversal of 14390728 is 82709341.

It is a junction number, because it is equal to n+sod(n) for n = 14390693 and 14390702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (951750).

Almost surely, 2^14390728 is an apocalyptic number.

It is an amenable number.

14390728 is an abundant number, since it is smaller than the sum of its proper divisors (16065272).

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

14390728 is a wasteful number, since it uses less digits than its factorization.

14390728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5681 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 14390728 is about 3793.5113022107. The cubic root of 14390728 is about 243.2358517812.

The spelling of 14390728 in words is "fourteen million, three hundred ninety thousand, seven hundred twenty-eight".