1307921308 has 12 divisors (see below), whose sum is σ = 2289669480. Its totient is φ = 653730032.

The previous prime is 1307921273. The next prime is 1307921357. The reversal of 1307921308 is 8031297031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44566 + ... + 67837.

It is an arithmetic number, because the mean of its divisors is an integer number (190805790).

Almost surely, 2^1307921308 is an apocalyptic number.

It is an amenable number.

1307921308 is a deficient number, since it is larger than the sum of its proper divisors (981748172).

1307921308 is a wasteful number, since it uses less digits than its factorization.

1307921308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115316 (or 115314 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1307921308 is about 36165.1947043010. The cubic root of 1307921308 is about 1093.6051289460.

The spelling of 1307921308 in words is "one billion, three hundred seven million, nine hundred twenty-one thousand, three hundred eight".