13240434 has 16 divisors (see below), whose sum is σ = 26536320. Its totient is φ = 4404240.

The previous prime is 13240421. The next prime is 13240453. The reversal of 13240434 is 43404231.

It is a self number, because there is not a number n which added to its sum of digits gives 13240434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1658520).

Almost surely, 2^13240434 is an apocalyptic number.

13240434 is an abundant number, since it is smaller than the sum of its proper divisors (13295886).

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

13240434 is a wasteful number, since it uses less digits than its factorization.

13240434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13240434 is about 3638.7407162369. The cubic root of 13240434 is about 236.5742145888.

Adding to 13240434 its reverse (43404231), we get a palindrome (56644665).

The spelling of 13240434 in words is "thirteen million, two hundred forty thousand, four hundred thirty-four".