2316646440 has 512 divisors, whose sum is σ = 8942400000. Its totient is φ = 529514496.

The previous prime is 2316646369. The next prime is 2316646463. The reversal of 2316646440 is 446466132.

2316646440 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 6 + 4 + 644 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2316646395 and 2316646404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10116246 + ... + 10116474.

It is an arithmetic number, because the mean of its divisors is an integer number (17465625).

Almost surely, 2^2316646440 is an apocalyptic number.

2316646440 is a gapful number since it is divisible by the number (20) 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 2316646440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4471200000).

2316646440 is an abundant number, since it is smaller than the sum of its proper divisors (6625753560).

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

2316646440 is a wasteful number, since it uses less digits than its factorization.

2316646440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2316646440 is about 48131.5534758645. The cubic root of 2316646440 is about 1323.1830208389.

The spelling of 2316646440 in words is "two billion, three hundred sixteen million, six hundred forty-six thousand, four hundred forty".