1320994530 has 24 divisors (see below), whose sum is σ = 3434586012. Its totient is φ = 352265184.

The previous prime is 1320994517. The next prime is 1320994541. The reversal of 1320994530 is 354990231.

It is a happy number.

1320994530 is a `hidden beast` number, since 1 + 32 + 0 + 9 + 94 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1195845561 + 125148969 = 34581^2 + 11187^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7338769 + ... + 7338948.

Almost surely, 2^1320994530 is an apocalyptic number.

1320994530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320994530 is an abundant number, since it is smaller than the sum of its proper divisors (2113591482).

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

1320994530 is a wasteful number, since it uses less digits than its factorization.

1320994530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14677730 (or 14677727 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1320994530 is about 36345.4884407955. The cubic root of 1320994530 is about 1097.2367365114.

The spelling of 1320994530 in words is "one billion, three hundred twenty million, nine hundred ninety-four thousand, five hundred thirty".