13418431 has 6 divisors (see below), whose sum is σ = 14530200. Its totient is φ = 12386088.

The previous prime is 13418417. The next prime is 13418437. The reversal of 13418431 is 13481431.

It is not a de Polignac number, because 13418431 - 2⁷ = 13418303 is a prime.

It is a super-2 number, since 2×13418431² = 360108581003522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13418396 and 13418405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13418437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39531 + ... + 39868.

It is an arithmetic number, because the mean of its divisors is an integer number (2421700).

Almost surely, 2^13418431 is an apocalyptic number.

13418431 is a deficient number, since it is larger than the sum of its proper divisors (1111769).

13418431 is an equidigital number, since it uses as much as digits as its factorization.

13418431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79425 (or 79412 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 13418431 is about 3663.1176612279. The cubic root of 13418431 is about 237.6296230548.

Adding to 13418431 its reverse (13481431), we get a palindrome (26899862).

The spelling of 13418431 in words is "thirteen million, four hundred eighteen thousand, four hundred thirty-one".