13424345 has 12 divisors (see below), whose sum is σ = 17707620. Its totient is φ = 9762720.

The previous prime is 13424311. The next prime is 13424347. The reversal of 13424345 is 54342431.

It can be written as a sum of positive squares in 2 ways, for example, as 6911641 + 6512704 = 2629^2 + 2552^2 .

It is not a de Polignac number, because 13424345 - 2¹⁰ = 13423321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13424347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10490 + ... + 11699.

It is an arithmetic number, because the mean of its divisors is an integer number (1475635).

Almost surely, 2^13424345 is an apocalyptic number.

It is an amenable number.

13424345 is a deficient number, since it is larger than the sum of its proper divisors (4283275).

13424345 is a wasteful number, since it uses less digits than its factorization.

13424345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22216 (or 22205 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 13424345 is about 3663.9248081804. The cubic root of 13424345 is about 237.6645286554.

Adding to 13424345 its reverse (54342431), we get a palindrome (67766776).

The spelling of 13424345 in words is "thirteen million, four hundred twenty-four thousand, three hundred forty-five".