13824142 has 4 divisors (see below), whose sum is σ = 20736216. Its totient is φ = 6912070.

The previous prime is 13824121. The next prime is 13824169. The reversal of 13824142 is 24142831.

13824142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×13824142² = 382213804072328, which contains 22 as substring.

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, 3456034 + ... + 3456037.

It is an arithmetic number, because the mean of its divisors is an integer number (5184054).

Almost surely, 2^13824142 is an apocalyptic number.

13824142 is a deficient number, since it is larger than the sum of its proper divisors (6912074).

13824142 is an equidigital number, since it uses as much as digits as its factorization.

13824142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912073.

The product of its digits is 1536, while the sum is 25.

The square root of 13824142 is about 3718.0831082696. The cubic root of 13824142 is about 240.0008217564. Note that the first 3 decimals are identical.

Adding to 13824142 its reverse (24142831), we get a palindrome (37966973).

The spelling of 13824142 in words is "thirteen million, eight hundred twenty-four thousand, one hundred forty-two".