1320240706 has 16 divisors (see below), whose sum is σ = 2136419064. Its totient is φ = 609566464.

The previous prime is 1320240671. The next prime is 1320240799. The reversal of 1320240706 is 6070420231.

It can be written as a sum of positive squares in 4 ways, for example, as 1219057225 + 101183481 = 34915^2 + 10059^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364525 + ... + 368128.

Almost surely, 2^1320240706 is an apocalyptic number.

1320240706 is a deficient number, since it is larger than the sum of its proper divisors (816178358).

1320240706 is a wasteful number, since it uses less digits than its factorization.

1320240706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732725.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1320240706 is about 36335.1167054683. The cubic root of 1320240706 is about 1097.0279845070.

Adding to 1320240706 its reverse (6070420231), we get a palindrome (7390660937).

The spelling of 1320240706 in words is "one billion, three hundred twenty million, two hundred forty thousand, seven hundred six".