1311740732 has 12 divisors (see below), whose sum is σ = 2318275176. Its totient is φ = 649376400.

The previous prime is 1311740711. The next prime is 1311740743. The reversal of 1311740732 is 2370471131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311740695 and 1311740704.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1623038 + ... + 1623845.

It is an arithmetic number, because the mean of its divisors is an integer number (193189598).

Almost surely, 2^1311740732 is an apocalyptic number.

It is an amenable number.

1311740732 is a deficient number, since it is larger than the sum of its proper divisors (1006534444).

1311740732 is a wasteful number, since it uses less digits than its factorization.

1311740732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246988 (or 3246986 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1311740732 is about 36217.9614556093. The cubic root of 1311740732 is about 1094.6686186134.

The spelling of 1311740732 in words is "one billion, three hundred eleven million, seven hundred forty thousand, seven hundred thirty-two".