1320216379 has 8 divisors (see below), whose sum is σ = 1424252160. Its totient is φ = 1219111296.

The previous prime is 1320216377. The next prime is 1320216389. The reversal of 1320216379 is 9736120231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320216379 - 2¹ = 1320216377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320216377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731739 + ... + 733540.

It is an arithmetic number, because the mean of its divisors is an integer number (178031520).

Almost surely, 2^1320216379 is an apocalyptic number.

1320216379 is a deficient number, since it is larger than the sum of its proper divisors (104035781).

1320216379 is a wasteful number, since it uses less digits than its factorization.

1320216379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465349.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1320216379 is about 36334.7819451280. The cubic root of 1320216379 is about 1097.0212464519.

The spelling of 1320216379 in words is "one billion, three hundred twenty million, two hundred sixteen thousand, three hundred seventy-nine".