13933828 has 12 divisors (see below), whose sum is σ = 24511900. Its totient is φ = 6930432.

The previous prime is 13933823. The next prime is 13933847. The reversal of 13933828 is 82833931.

It can be written as a sum of positive squares in 2 ways, for example, as 7941124 + 5992704 = 2818^2 + 2448^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13933823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8253 + ... + 9796.

Almost surely, 2^13933828 is an apocalyptic number.

It is an amenable number.

13933828 is a deficient number, since it is larger than the sum of its proper divisors (10578072).

13933828 is a wasteful number, since it uses less digits than its factorization.

13933828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18246 (or 18244 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 13933828 is about 3732.8043077558. The cubic root of 13933828 is about 240.6339029258.

The spelling of 13933828 in words is "thirteen million, nine hundred thirty-three thousand, eight hundred twenty-eight".