1330385639 has 8 divisors (see below), whose sum is σ = 1452334080. Its totient is φ = 1208604600.

The previous prime is 1330385629. The next prime is 1330385659. The reversal of 1330385639 is 9365830331.

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 1330385639 - 2¹² = 1330381543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330385596 and 1330385605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330385629) 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, 24929 + ... + 57290.

It is an arithmetic number, because the mean of its divisors is an integer number (181541760).

Almost surely, 2^1330385639 is an apocalyptic number.

1330385639 is a deficient number, since it is larger than the sum of its proper divisors (121948441).

1330385639 is a wasteful number, since it uses less digits than its factorization.

1330385639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83701.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 1330385639 is about 36474.4518670260. The cubic root of 1330385639 is about 1099.8307284988.

The spelling of 1330385639 in words is "one billion, three hundred thirty million, three hundred eighty-five thousand, six hundred thirty-nine".