13009418 has 8 divisors (see below), whose sum is σ = 19539012. Its totient is φ = 6496416.

The previous prime is 13009391. The next prime is 13009439. The reversal of 13009418 is 81490031.

It can be written as a sum of positive squares in 2 ways, for example, as 11404129 + 1605289 = 3377^2 + 1267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955 + ... + 5462.

Almost surely, 2^13009418 is an apocalyptic number.

13009418 is a deficient number, since it is larger than the sum of its proper divisors (6529594).

13009418 is an equidigital number, since it uses as much as digits as its factorization.

13009418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13009418 is about 3606.8570806174. The cubic root of 13009418 is about 235.1902367837.

Adding to 13009418 its reverse (81490031), we get a palindrome (94499449).

The spelling of 13009418 in words is "thirteen million, nine thousand, four hundred eighteen".