13422418 has 16 divisors (see below), whose sum is σ = 22054680. Its totient is φ = 6098176.

The previous prime is 13422397. The next prime is 13422419. The reversal of 13422418 is 81422431.

It can be written as a sum of positive squares in 4 ways, for example, as 8898289 + 4524129 = 2983^2 + 2127^2 .

It is a super-2 number, since 2×13422418² = 360322609933448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13422392 and 13422401.

It is not an unprimeable number, because it can be changed into a prime (13422419) 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 7 ways as a sum of consecutive naturals, for example, 5821 + ... + 7792.

Almost surely, 2^13422418 is an apocalyptic number.

13422418 is a deficient number, since it is larger than the sum of its proper divisors (8632262).

13422418 is a wasteful number, since it uses less digits than its factorization.

13422418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13661.

The product of its digits is 1536, while the sum is 25.

The square root of 13422418 is about 3663.6618293724. The cubic root of 13422418 is about 237.6531562455.

Adding to 13422418 its reverse (81422431), we get a palindrome (94844849).

The spelling of 13422418 in words is "thirteen million, four hundred twenty-two thousand, four hundred eighteen".