2043895040 has 144 divisors (see below), whose sum is σ = 5655666240. Its totient is φ = 699432960.

The previous prime is 2043895033. The next prime is 2043895067. The reversal of 2043895040 is 405983402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235091 + ... + 243629.

It is an arithmetic number, because the mean of its divisors is an integer number (39275460).

Almost surely, 2^2043895040 is an apocalyptic number.

2043895040 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 2043895040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2827833120).

2043895040 is an abundant number, since it is smaller than the sum of its proper divisors (3611771200).

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

2043895040 is a wasteful number, since it uses less digits than its factorization.

2043895040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588 (or 8574 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2043895040 is about 45209.4574176687. The cubic root of 2043895040 is about 1269.0718081989.

The spelling of 2043895040 in words is "two billion, forty-three million, eight hundred ninety-five thousand, forty".