13423318 has 16 divisors (see below), whose sum is σ = 20731536. Its totient is φ = 6514560.

The previous prime is 13423307. The next prime is 13423321. The reversal of 13423318 is 81332431.

It is a super-2 number, since 2×13423318² = 360370932258248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13423292 and 13423301.

It is a congruent number.

It is an unprimeable number.

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, 25405 + ... + 25927.

It is an arithmetic number, because the mean of its divisors is an integer number (1295721).

Almost surely, 2^13423318 is an apocalyptic number.

13423318 is a deficient number, since it is larger than the sum of its proper divisors (7308218).

13423318 is a wasteful number, since it uses less digits than its factorization.

13423318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its digits is 1728, while the sum is 25.

The square root of 13423318 is about 3663.7846552438. The cubic root of 13423318 is about 237.6584678334.

Adding to 13423318 its reverse (81332431), we get a palindrome (94755749).

The spelling of 13423318 in words is "thirteen million, four hundred twenty-three thousand, three hundred eighteen".