13422403 has 4 divisors (see below), whose sum is σ = 13430560. Its totient is φ = 13414248.

The previous prime is 13422397. The next prime is 13422419. The reversal of 13422403 is 30422431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30422431 = 13 ⋅2340187.

It is a cyclic number.

It is not a de Polignac number, because 13422403 - 2⁵ = 13422371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422433) 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, 648 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (3357640).

Almost surely, 2^13422403 is an apocalyptic number.

13422403 is a deficient number, since it is larger than the sum of its proper divisors (8157).

13422403 is an equidigital number, since it uses as much as digits as its factorization.

13422403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13422403 is about 3663.6597822396. The cubic root of 13422403 is about 237.6530677170.

Adding to 13422403 its reverse (30422431), we get a palindrome (43844834).

The spelling of 13422403 in words is "thirteen million, four hundred twenty-two thousand, four hundred three".