1330633881 has 24 divisors (see below), whose sum is σ = 2007660096. Its totient is φ = 847645920.

The previous prime is 1330633879. The next prime is 1330633891. The reversal of 1330633881 is 1883360331.

1330633881 is a `hidden beast` number, since 13 + 3 + 0 + 633 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 1330633881 - 2¹ = 1330633879 is a prime.

It is a super-2 number, since 2×1330633881² = 3541173050530244322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1330633861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241746 + ... + 247188.

It is an arithmetic number, because the mean of its divisors is an integer number (83652504).

Almost surely, 2^1330633881 is an apocalyptic number.

It is an amenable number.

1330633881 is a deficient number, since it is larger than the sum of its proper divisors (677026215).

1330633881 is a wasteful number, since it uses less digits than its factorization.

1330633881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653 (or 6650 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1330633881 is about 36477.8546655365. The cubic root of 1330633881 is about 1099.8991315221.

The spelling of 1330633881 in words is "one billion, three hundred thirty million, six hundred thirty-three thousand, eight hundred eighty-one".