13806419 has 4 divisors (see below), whose sum is σ = 15061560. Its totient is φ = 12551280.

The previous prime is 13806409. The next prime is 13806433. The reversal of 13806419 is 91460831.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13806419 is a prime.

It is a super-2 number, since 2×13806419² = 381234411207122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13806409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627554 + ... + 627575.

It is an arithmetic number, because the mean of its divisors is an integer number (3765390).

Almost surely, 2^13806419 is an apocalyptic number.

13806419 is a deficient number, since it is larger than the sum of its proper divisors (1255141).

13806419 is a wasteful number, since it uses less digits than its factorization.

13806419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255140.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13806419 is about 3715.6989921144. The cubic root of 13806419 is about 239.8982149405.

The spelling of 13806419 in words is "thirteen million, eight hundred six thousand, four hundred nineteen".