14728644 has 72 divisors (see below), whose sum is σ = 42905408. Its totient is φ = 4173120.

The previous prime is 14728639. The next prime is 14728663. The reversal of 14728644 is 44682741.

14728644 is a `hidden beast` number, since 1 + 4 + 7 + 2 + 8 + 644 = 666.

14728644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14728599 and 14728608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53034 + ... + 53310.

Almost surely, 2^14728644 is an apocalyptic number.

14728644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14728644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21452704).

14728644 is an abundant number, since it is smaller than the sum of its proper divisors (28176764).

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

14728644 is a wasteful number, since it uses less digits than its factorization.

14728644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 500 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 14728644 is about 3837.7915524426. The cubic root of 14728644 is about 245.1249896741.

The spelling of 14728644 in words is "fourteen million, seven hundred twenty-eight thousand, six hundred forty-four".