13384728 has 48 divisors (see below), whose sum is σ = 41430480. Its totient is φ = 3824064.

The previous prime is 13384711. The next prime is 13384741. The reversal of 13384728 is 82748331.

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

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13384692 and 13384701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12775 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (863135).

Almost surely, 2^13384728 is an apocalyptic number.

13384728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13384728 is an abundant number, since it is smaller than the sum of its proper divisors (28045752).

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

13384728 is a wasteful number, since it uses less digits than its factorization.

13384728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26576 (or 26569 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 13384728 is about 3658.5144526160. The cubic root of 13384728 is about 237.4305052443.

The spelling of 13384728 in words is "thirteen million, three hundred eighty-four thousand, seven hundred twenty-eight".