1311463740 has 48 divisors (see below), whose sum is σ = 3683883168. Its totient is φ = 348601344.

The previous prime is 1311463721. The next prime is 1311463763. The reversal of 1311463740 is 473641131.

1311463740 is digitally balanced in base 4 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1311463698 and 1311463707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16137 + ... + 53696.

It is an arithmetic number, because the mean of its divisors is an integer number (76747566).

Almost surely, 2^1311463740 is an apocalyptic number.

1311463740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311463740 is an abundant number, since it is smaller than the sum of its proper divisors (2372419428).

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

1311463740 is a wasteful number, since it uses less digits than its factorization.

1311463740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70158 (or 70156 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1311463740 is about 36214.1372947085. The cubic root of 1311463740 is about 1094.5915617713.

The spelling of 1311463740 in words is "one billion, three hundred eleven million, four hundred sixty-three thousand, seven hundred forty".