1312334408 has 128 divisors (see below), whose sum is σ = 3334348800. Its totient is φ = 468633600.

The previous prime is 1312334407. The next prime is 1312334449. The reversal of 1312334408 is 8044332131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1312334407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361016 + ... + 364632.

It is an arithmetic number, because the mean of its divisors is an integer number (26049600).

Almost surely, 2^1312334408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312334408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667174400).

1312334408 is an abundant number, since it is smaller than the sum of its proper divisors (2022014392).

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

1312334408 is a wasteful number, since it uses less digits than its factorization.

1312334408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1312334408 is about 36226.1564066629. The cubic root of 1312334408 is about 1094.8337377444.

Adding to 1312334408 its reverse (8044332131), we get a palindrome (9356666539).

The spelling of 1312334408 in words is "one billion, three hundred twelve million, three hundred thirty-four thousand, four hundred eight".