13406346 has 24 divisors (see below), whose sum is σ = 29317860. Its totient is φ = 4427136.

The previous prime is 13406339. The next prime is 13406357. The reversal of 13406346 is 64360431.

It can be written as a sum of positive squares in 2 ways, for example, as 13242321 + 164025 = 3639^2 + 405^2 .

It is a super-2 number, since 2×13406346² = 359460226143432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1455 + ... + 5378.

Almost surely, 2^13406346 is an apocalyptic number.

13406346 is an abundant number, since it is smaller than the sum of its proper divisors (15911514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13406346 is a wasteful number, since it uses less digits than its factorization.

13406346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950 (or 6947 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 13406346 is about 3661.4677384896. The cubic root of 13406346 is about 237.5582630835.

Adding to 13406346 its reverse (64360431), we get a palindrome (77766777).

The spelling of 13406346 in words is "thirteen million, four hundred six thousand, three hundred forty-six".