13928042 has 4 divisors (see below), whose sum is σ = 20892066. Its totient is φ = 6964020.

The previous prime is 13928003. The next prime is 13928059. The reversal of 13928042 is 24082931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12737761 + 1190281 = 3569^2 + 1091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13927996 and 13928014.

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 as a sum of consecutive naturals, namely, 3482009 + ... + 3482012.

Almost surely, 2^13928042 is an apocalyptic number.

13928042 is a deficient number, since it is larger than the sum of its proper divisors (6964024).

13928042 is an equidigital number, since it uses as much as digits as its factorization.

13928042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964023.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13928042 is about 3732.0292067453. The cubic root of 13928042 is about 240.6005906988.

The spelling of 13928042 in words is "thirteen million, nine hundred twenty-eight thousand, forty-two".