13445218 has 8 divisors (see below), whose sum is σ = 20292048. Its totient is φ = 6681204.

The previous prime is 13445207. The next prime is 13445219. The reversal of 13445218 is 81254431.

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

It is not an unprimeable number, because it can be changed into a prime (13445219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20296 + ... + 20947.

It is an arithmetic number, because the mean of its divisors is an integer number (2536506).

Almost surely, 2^13445218 is an apocalyptic number.

13445218 is a deficient number, since it is larger than the sum of its proper divisors (6846830).

13445218 is a wasteful number, since it uses less digits than its factorization.

13445218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41408.

The product of its digits is 3840, while the sum is 28.

The square root of 13445218 is about 3666.7721499979. The cubic root of 13445218 is about 237.7876433603.

Adding to 13445218 its reverse (81254431), we get a palindrome (94699649).

The spelling of 13445218 in words is "thirteen million, four hundred forty-five thousand, two hundred eighteen".