1312340404 has 12 divisors (see below), whose sum is σ = 2296866628. Its totient is φ = 656092800.

The previous prime is 1312340401. The next prime is 1312340443. The reversal of 1312340404 is 4040432131.

It can be written as a sum of positive squares in 2 ways, for example, as 750650404 + 561690000 = 27398^2 + 23700^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312340401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37084 + ... + 63244.

Almost surely, 2^1312340404 is an apocalyptic number.

It is an amenable number.

1312340404 is a deficient number, since it is larger than the sum of its proper divisors (984526224).

1312340404 is a wasteful number, since it uses less digits than its factorization.

1312340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38706 (or 38704 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1312340404 is about 36226.2391644510. The cubic root of 1312340404 is about 1094.8354051581.

Adding to 1312340404 its reverse (4040432131), we get a palindrome (5352772535).

The spelling of 1312340404 in words is "one billion, three hundred twelve million, three hundred forty thousand, four hundred four".