14731728 has 40 divisors (see below), whose sum is σ = 41518176. Its totient is φ = 4464000.

The previous prime is 14731699. The next prime is 14731729. The reversal of 14731728 is 82713741.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14731729) 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, 13423 + ... + 14478.

Almost surely, 2^14731728 is an apocalyptic number.

It is an amenable number.

14731728 is an abundant number, since it is smaller than the sum of its proper divisors (26786448).

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

14731728 is a wasteful number, since it uses less digits than its factorization.

14731728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27923 (or 27917 counting only the distinct ones).

The product of its digits is 9408, while the sum is 33.

The square root of 14731728 is about 3838.1933249903. The cubic root of 14731728 is about 245.1420972167.

The spelling of 14731728 in words is "fourteen million, seven hundred thirty-one thousand, seven hundred twenty-eight".