3116312240 has 80 divisors (see below), whose sum is σ = 7321326048. Its totient is φ = 1233543168.

The previous prime is 3116312237. The next prime is 3116312249. The reversal of 3116312240 is 422136113.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3116312240² = 19422803954347635200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3116312249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4602782 + ... + 4603458.

Almost surely, 2^3116312240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3116312240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3660663024).

3116312240 is an abundant number, since it is smaller than the sum of its proper divisors (4205013808).

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

3116312240 is a wasteful number, since it uses less digits than its factorization.

3116312240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3116312240 is about 55823.9396674939. The cubic root of 3116312240 is about 1460.6527762135.

Adding to 3116312240 its reverse (422136113), we get a palindrome (3538448353).

The spelling of 3116312240 in words is "three billion, one hundred sixteen million, three hundred twelve thousand, two hundred forty".