2317481640 has 192 divisors, whose sum is σ = 7958995200. Its totient is φ = 583865856.

The previous prime is 2317481597. The next prime is 2317481651. The reversal of 2317481640 is 461847132.

2317481640 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 4 + 8 + 1 + 640 = 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 = 2317481595 and 2317481604.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 488319 + ... + 493041.

It is an arithmetic number, because the mean of its divisors is an integer number (41453100).

Almost surely, 2^2317481640 is an apocalyptic number.

2317481640 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 2317481640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3979497600).

2317481640 is an abundant number, since it is smaller than the sum of its proper divisors (5641513560).

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

2317481640 is a wasteful number, since it uses less digits than its factorization.

2317481640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816 (or 4809 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 2317481640 is about 48140.2289151184. The cubic root of 2317481640 is about 1323.3420135478.

The spelling of 2317481640 in words is "two billion, three hundred seventeen million, four hundred eighty-one thousand, six hundred forty".