13309412 has 6 divisors (see below), whose sum is σ = 23291478. Its totient is φ = 6654704.

The previous prime is 13309411. The next prime is 13309421. The reversal of 13309412 is 21490331.

13309412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8916196 + 4393216 = 2986^2 + 2096^2 .

It is not an unprimeable number, because it can be changed into a prime (13309411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1663673 + ... + 1663680.

It is an arithmetic number, because the mean of its divisors is an integer number (3881913).

Almost surely, 2^13309412 is an apocalyptic number.

It is an amenable number.

13309412 is a deficient number, since it is larger than the sum of its proper divisors (9982066).

13309412 is a wasteful number, since it uses less digits than its factorization.

13309412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327357 (or 3327355 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13309412 is about 3648.2066827415. The cubic root of 13309412 is about 236.9843260240.

Adding to 13309412 its reverse (21490331), we get a palindrome (34799743).

The spelling of 13309412 in words is "thirteen million, three hundred nine thousand, four hundred twelve".