1316843892 has 240 divisors, whose sum is σ = 4314414720. Its totient is φ = 340962048.

The previous prime is 1316843881. The next prime is 1316843903. The reversal of 1316843892 is 2983486131.

It is an interprime number because it is at equal distance from previous prime (1316843881) and next prime (1316843903).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1739178 + ... + 1739934.

It is an arithmetic number, because the mean of its divisors is an integer number (17976728).

Almost surely, 2^1316843892 is an apocalyptic number.

1316843892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316843892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2157207360).

1316843892 is an abundant number, since it is smaller than the sum of its proper divisors (2997570828).

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

1316843892 is a wasteful number, since it uses less digits than its factorization.

1316843892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 841 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1316843892 is about 36288.3437483719. The cubic root of 1316843892 is about 1096.0863379247.

The spelling of 1316843892 in words is "one billion, three hundred sixteen million, eight hundred forty-three thousand, eight hundred ninety-two".