13940828 has 24 divisors (see below), whose sum is σ = 26886384. Its totient is φ = 6272000.

The previous prime is 13940827. The next prime is 13940831. The reversal of 13940828 is 82804931.

It is a happy number.

13940828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13940827) 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, 2876 + ... + 6012.

It is an arithmetic number, because the mean of its divisors is an integer number (1120266).

Almost surely, 2^13940828 is an apocalyptic number.

It is an amenable number.

13940828 is a deficient number, since it is larger than the sum of its proper divisors (12945556).

13940828 is a wasteful number, since it uses less digits than its factorization.

13940828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3251 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 13940828 is about 3733.7418228903. The cubic root of 13940828 is about 240.6741922927.

The spelling of 13940828 in words is "thirteen million, nine hundred forty thousand, eight hundred twenty-eight".