13828742 has 4 divisors (see below), whose sum is σ = 20743116. Its totient is φ = 6914370.

The previous prime is 13828723. The next prime is 13828777. The reversal of 13828742 is 24782831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24782831 = 67 ⋅369893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457184 + ... + 3457187.

It is an arithmetic number, because the mean of its divisors is an integer number (5185779).

Almost surely, 2^13828742 is an apocalyptic number.

13828742 is a deficient number, since it is larger than the sum of its proper divisors (6914374).

13828742 is an equidigital number, since it uses as much as digits as its factorization.

13828742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914373.

The product of its digits is 21504, while the sum is 35.

The square root of 13828742 is about 3718.7016551479. The cubic root of 13828742 is about 240.0274389924.

The spelling of 13828742 in words is "thirteen million, eight hundred twenty-eight thousand, seven hundred forty-two".