1306330906240 has 48 divisors (see below), whose sum is σ = 3123016448130. Its totient is φ = 522520796672.

The previous prime is 1306330906171. The next prime is 1306330906267. The reversal of 1306330906240 is 426090336031.

It can be written as a sum of positive squares in only one way, i.e., 1175697815616 + 130633090624 = 1084296^2 + 361432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1306330906240.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28891971 + ... + 28937149.

Almost surely, 2^{1306330906240} is an apocalyptic number.

1306330906240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306330906240 is an abundant number, since it is smaller than the sum of its proper divisors (1816685541890).

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

1306330906240 is an frugal number, since it uses more digits than its factorization.

1306330906240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90377 (or 45186 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 1306330906240 in words is "one trillion, three hundred six billion, three hundred thirty million, nine hundred six thousand, two hundred forty".