2320818840 has 192 divisors, whose sum is σ = 7972473600. Its totient is φ = 583891200.

The previous prime is 2320818827. The next prime is 2320818881. The reversal of 2320818840 is 488180232.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 2320818795 and 2320818804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2126695 + ... + 2127785.

It is an arithmetic number, because the mean of its divisors is an integer number (41523300).

Almost surely, 2^2320818840 is an apocalyptic number.

2320818840 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 2320818840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3986236800).

2320818840 is an abundant number, since it is smaller than the sum of its proper divisors (5651654760).

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

2320818840 is a wasteful number, since it uses less digits than its factorization.

2320818840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 2320818840 is about 48174.8776853663. The cubic root of 2320818840 is about 1323.9769180875.

The spelling of 2320818840 in words is "two billion, three hundred twenty million, eight hundred eighteen thousand, eight hundred forty".