2043840240 has 240 divisors, whose sum is σ = 7519206240. Its totient is φ = 494438400.

The previous prime is 2043840217. The next prime is 2043840247. The reversal of 2043840240 is 420483402.

It is a happy number.

2043840240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043840247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 550390 + ... + 554090.

It is an arithmetic number, because the mean of its divisors is an integer number (31330026).

Almost surely, 2^2043840240 is an apocalyptic number.

2043840240 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 2043840240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3759603120).

2043840240 is an abundant number, since it is smaller than the sum of its proper divisors (5475366000).

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

2043840240 is a wasteful number, since it uses less digits than its factorization.

2043840240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 2043840240 is about 45208.8513457265. The cubic root of 2043840240 is about 1269.0604661689.

The spelling of 2043840240 in words is "two billion, forty-three million, eight hundred forty thousand, two hundred forty".