13406312 has 8 divisors (see below), whose sum is σ = 25136850. Its totient is φ = 6703152.

The previous prime is 13406311. The next prime is 13406317. The reversal of 13406312 is 21360431.

It can be written as a sum of positive squares in only one way, i.e., 10329796 + 3076516 = 3214^2 + 1754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13406311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837887 + ... + 837902.

Almost surely, 2^13406312 is an apocalyptic number.

It is an amenable number.

13406312 is a deficient number, since it is larger than the sum of its proper divisors (11730538).

13406312 is a wasteful number, since it uses less digits than its factorization.

13406312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675795 (or 1675791 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13406312 is about 3661.4630955398. The cubic root of 13406312 is about 237.5580622585.

Adding to 13406312 its reverse (21360431), we get a palindrome (34766743).

The spelling of 13406312 in words is "thirteen million, four hundred six thousand, three hundred twelve".