2183640000 has 280 divisors, whose sum is σ = 7465210368. Its totient is φ = 562560000.

The previous prime is 2183639981. The next prime is 2183640007. The reversal of 2183640000 is 463812.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183640007) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 3719707 + ... + 3720293.

Almost surely, 2^2183640000 is an apocalyptic number.

2183640000 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 2183640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3732605184).

2183640000 is an abundant number, since it is smaller than the sum of its proper divisors (5281570368).

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

2183640000 is an equidigital number, since it uses as much as digits as its factorization.

2183640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2183640000 is about 46729.4339790244. The cubic root of 2183640000 is about 1297.3595320181.

The spelling of 2183640000 in words is "two billion, one hundred eighty-three million, six hundred forty thousand".