1306233740 has 48 divisors (see below), whose sum is σ = 3143626752. Its totient is φ = 446613696.

The previous prime is 1306233727. The next prime is 1306233751. The reversal of 1306233740 is 473326031.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 38669 + ... + 64091.

It is an arithmetic number, because the mean of its divisors is an integer number (65492224).

Almost surely, 2^1306233740 is an apocalyptic number.

1306233740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306233740 is an abundant number, since it is smaller than the sum of its proper divisors (1837393012).

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

1306233740 is a wasteful number, since it uses less digits than its factorization.

1306233740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25806 (or 25804 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 1306233740 is about 36141.8557907587. The cubic root of 1306233740 is about 1093.1345788903.

Adding to 1306233740 its reverse (473326031), we get a palindrome (1779559771).

The spelling of 1306233740 in words is "one billion, three hundred six million, two hundred thirty-three thousand, seven hundred forty".