1306745766 has 24 divisors (see below), whose sum is σ = 2997829224. Its totient is φ = 409959360.

The previous prime is 1306745753. The next prime is 1306745801. The reversal of 1306745766 is 6675476031.

1306745766 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 74 + 576 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2134900 + ... + 2135511.

It is an arithmetic number, because the mean of its divisors is an integer number (124909551).

Almost surely, 2^1306745766 is an apocalyptic number.

1306745766 is an abundant number, since it is smaller than the sum of its proper divisors (1691083458).

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

1306745766 is a wasteful number, since it uses less digits than its factorization.

1306745766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270436 (or 4270433 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 1306745766 is about 36148.9386566190. The cubic root of 1306745766 is about 1093.2773915665.

The spelling of 1306745766 in words is "one billion, three hundred six million, seven hundred forty-five thousand, seven hundred sixty-six".