1307320329 has 32 divisors (see below), whose sum is σ = 2020515840. Its totient is φ = 736457472.

The previous prime is 1307320309. The next prime is 1307320331. The reversal of 1307320329 is 9230237031.

It is not a de Polignac number, because 1307320329 - 2²⁰ = 1306271753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1307320296 and 1307320305.

It is not an unprimeable number, because it can be changed into a prime (1307320309) 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, 499777 + ... + 502385.

It is an arithmetic number, because the mean of its divisors is an integer number (63141120).

Almost surely, 2^1307320329 is an apocalyptic number.

It is an amenable number.

1307320329 is a deficient number, since it is larger than the sum of its proper divisors (713195511).

1307320329 is a wasteful number, since it uses less digits than its factorization.

1307320329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 1307320329 is about 36156.8849460238. The cubic root of 1307320329 is about 1093.4376024537.

The spelling of 1307320329 in words is "one billion, three hundred seven million, three hundred twenty thousand, three hundred twenty-nine".