13901728 has 24 divisors (see below), whose sum is σ = 28008288. Its totient is φ = 6788544.

The previous prime is 13901689. The next prime is 13901737. The reversal of 13901728 is 82710931.

It is a self number, because there is not a number n which added to its sum of digits gives 13901728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (1167012).

Almost surely, 2^13901728 is an apocalyptic number.

It is an amenable number.

13901728 is an abundant number, since it is smaller than the sum of its proper divisors (14106560).

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

13901728 is a wasteful number, since it uses less digits than its factorization.

13901728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156 (or 10148 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 13901728 is about 3728.5021121088. The cubic root of 13901728 is about 240.4489743828.

The spelling of 13901728 in words is "thirteen million, nine hundred one thousand, seven hundred twenty-eight".