1330540660 has 24 divisors (see below), whose sum is σ = 2794959720. Its totient is φ = 532059264.

The previous prime is 1330540643. The next prime is 1330540663. The reversal of 1330540660 is 660450331.

It can be written as a sum of positive squares in 4 ways, for example, as 520113636 + 810427024 = 22806^2 + 28468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330540663) 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, 79506 + ... + 94774.

It is an arithmetic number, because the mean of its divisors is an integer number (116456655).

Almost surely, 2^1330540660 is an apocalyptic number.

1330540660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330540660 is an abundant number, since it is smaller than the sum of its proper divisors (1464419060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1330540660 is a wasteful number, since it uses less digits than its factorization.

1330540660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19635 (or 19633 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1330540660 is about 36476.5768679025. The cubic root of 1330540660 is about 1099.8734454956.

Adding to 1330540660 its reverse (660450331), we get a palindrome (1990990991).

The spelling of 1330540660 in words is "one billion, three hundred thirty million, five hundred forty thousand, six hundred sixty".