13811834 has 16 divisors (see below), whose sum is σ = 21326760. Its totient is φ = 6704640.

The previous prime is 13811813. The next prime is 13811839. The reversal of 13811834 is 43811831.

It can be written as a sum of positive squares in 4 ways, for example, as 3591025 + 10220809 = 1895^2 + 3197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13811797 and 13811806.

It is not an unprimeable number, because it can be changed into a prime (13811839) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 31682 + ... + 32114.

Almost surely, 2^13811834 is an apocalyptic number.

13811834 is a deficient number, since it is larger than the sum of its proper divisors (7514926).

13811834 is a wasteful number, since it uses less digits than its factorization.

13811834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865.

The product of its digits is 2304, while the sum is 29.

The square root of 13811834 is about 3716.4275857334. The cubic root of 13811834 is about 239.9295742436.

The spelling of 13811834 in words is "thirteen million, eight hundred eleven thousand, eight hundred thirty-four".