13422819 has 4 divisors (see below), whose sum is σ = 17897096. Its totient is φ = 8948544.

The previous prime is 13422817. The next prime is 13422821. The reversal of 13422819 is 91822431.

13422819 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 an interprime number because it is at equal distance from previous prime (13422817) and next prime (13422821).

It is not a de Polignac number, because 13422819 - 2¹ = 13422817 is a prime.

It is a super-2 number, since 2×13422819² = 360344139813522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237134 + ... + 2237139.

It is an arithmetic number, because the mean of its divisors is an integer number (4474274).

Almost surely, 2^13422819 is an apocalyptic number.

13422819 is a deficient number, since it is larger than the sum of its proper divisors (4474277).

13422819 is an equidigital number, since it uses as much as digits as its factorization.

13422819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474276.

The product of its digits is 3456, while the sum is 30.

The square root of 13422819 is about 3663.7165556304. The cubic root of 13422819 is about 237.6555228823.

It can be divided in two parts, 13422 and 819, that added together give a palindrome (14241).

The spelling of 13422819 in words is "thirteen million, four hundred twenty-two thousand, eight hundred nineteen".