13422423 has 12 divisors (see below), whose sum is σ = 20818680. Its totient is φ = 7669872.

The previous prime is 13422421. The next prime is 13422433. The reversal of 13422423 is 32422431.

It is not a de Polignac number, because 13422423 - 2¹ = 13422421 is a prime.

It is a super-2 number, since 2×13422423² = 360322878381858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13422423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45508 + ... + 45801.

It is an arithmetic number, because the mean of its divisors is an integer number (1734890).

Almost surely, 2^13422423 is an apocalyptic number.

13422423 is a deficient number, since it is larger than the sum of its proper divisors (7396257).

13422423 is an equidigital number, since it uses as much as digits as its factorization.

13422423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91326 (or 91319 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 13422423 is about 3663.6625117497. The cubic root of 13422423 is about 237.6531857549.

Adding to 13422423 its reverse (32422431), we get a palindrome (45844854).

The spelling of 13422423 in words is "thirteen million, four hundred twenty-two thousand, four hundred twenty-three".