14977728 has 42 divisors (see below), whose sum is σ = 42932604. Its totient is φ = 4992384.

The previous prime is 14977727. The next prime is 14977733. The reversal of 14977728 is 82777941.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (14977723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12426 + ... + 13577.

Almost surely, 2^14977728 is an apocalyptic number.

14977728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

14977728 is an abundant number, since it is smaller than the sum of its proper divisors (27954876).

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

14977728 is a wasteful number, since it uses less digits than its factorization.

14977728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26021 (or 26008 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 14977728 is about 3870.1069752657. The cubic root of 14977728 is about 246.4990859148.

It can be divided in two parts, 149 and 77728, that added together give a palindrome (77877).

The spelling of 14977728 in words is "fourteen million, nine hundred seventy-seven thousand, seven hundred twenty-eight".