1320509466 has 40 divisors (see below), whose sum is σ = 2961160884. Its totient is φ = 439836480.

The previous prime is 1320509453. The next prime is 1320509471. The reversal of 1320509466 is 6649050231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1006475625 + 314033841 = 31725^2 + 17721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1320509466.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 307776 + ... + 312036.

Almost surely, 2^1320509466 is an apocalyptic number.

1320509466 is an abundant number, since it is smaller than the sum of its proper divisors (1640651418).

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

1320509466 is a wasteful number, since it uses less digits than its factorization.

1320509466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1320509466 is about 36338.8148678517. The cubic root of 1320509466 is about 1097.1024197307.

Adding to 1320509466 its reverse (6649050231), we get a palindrome (7969559697).

The spelling of 1320509466 in words is "one billion, three hundred twenty million, five hundred nine thousand, four hundred sixty-six".