13940128 has 24 divisors (see below), whose sum is σ = 27542592. Its totient is φ = 6945216.

The previous prime is 13940117. The next prime is 13940177. The reversal of 13940128 is 82104931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13940096 and 13940105.

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, 11151 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (1147608).

Almost surely, 2^13940128 is an apocalyptic number.

It is an amenable number.

13940128 is a deficient number, since it is larger than the sum of its proper divisors (13602464).

13940128 is a wasteful number, since it uses less digits than its factorization.

13940128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13940128 is about 3733.6480819702. The cubic root of 13940128 is about 240.6701639630.

The spelling of 13940128 in words is "thirteen million, nine hundred forty thousand, one hundred twenty-eight".