1320402060 has 60 divisors (see below), whose sum is σ = 4142155248. Its totient is φ = 352106784.

The previous prime is 1320402047. The next prime is 1320402071. The reversal of 1320402060 is 602040231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 19 ways as a sum of consecutive naturals, for example, 405912 + ... + 409151.

Almost surely, 2^1320402060 is an apocalyptic number.

1320402060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320402060 is an abundant number, since it is smaller than the sum of its proper divisors (2821753188).

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

1320402060 is a wasteful number, since it uses less digits than its factorization.

1320402060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815084 (or 815073 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1320402060 is about 36337.3369965384. The cubic root of 1320402060 is about 1097.0726739948.

Adding to 1320402060 its reverse (602040231), we get a palindrome (1922442291).

The spelling of 1320402060 in words is "one billion, three hundred twenty million, four hundred two thousand, sixty".