13826842 has 4 divisors (see below), whose sum is σ = 20740266. Its totient is φ = 6913420.

The previous prime is 13826821. The next prime is 13826843. The reversal of 13826842 is 24862831.

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., 8532241 + 5294601 = 2921^2 + 2301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13826798 and 13826807.

It is not an unprimeable number, because it can be changed into a prime (13826843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456709 + ... + 3456712.

Almost surely, 2^13826842 is an apocalyptic number.

13826842 is a deficient number, since it is larger than the sum of its proper divisors (6913424).

13826842 is an equidigital number, since it uses as much as digits as its factorization.

13826842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913423.

The product of its digits is 18432, while the sum is 34.

The square root of 13826842 is about 3718.4461808664. The cubic root of 13826842 is about 240.0164456323.

The spelling of 13826842 in words is "thirteen million, eight hundred twenty-six thousand, eight hundred forty-two".