1330445677 has 4 divisors (see below), whose sum is σ = 1451395296. Its totient is φ = 1209496060.

The previous prime is 1330445647. The next prime is 1330445689. The reversal of 1330445677 is 7765440331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7765440331 = 11 ⋅705949121.

It is a cyclic number.

It is not a de Polignac number, because 1330445677 - 2⁷ = 1330445549 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330445617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60474793 + ... + 60474814.

It is an arithmetic number, because the mean of its divisors is an integer number (362848824).

Almost surely, 2^1330445677 is an apocalyptic number.

It is an amenable number.

1330445677 is a deficient number, since it is larger than the sum of its proper divisors (120949619).

1330445677 is a wasteful number, since it uses less digits than its factorization.

1330445677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120949618.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 1330445677 is about 36475.2748721651. The cubic root of 1330445677 is about 1099.8472727353.

The spelling of 1330445677 in words is "one billion, three hundred thirty million, four hundred forty-five thousand, six hundred seventy-seven".