2043573840 has 480 divisors, whose sum is σ = 8850266880. Its totient is φ = 424258560.

The previous prime is 2043573821. The next prime is 2043573853. The reversal of 2043573840 is 483753402.

It is a happy number.

2043573840 is a `hidden beast` number, since 2 + 0 + 4 + 3 + 573 + 84 + 0 = 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 = 2043573795 and 2043573804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1828962 + ... + 1830078.

It is an arithmetic number, because the mean of its divisors is an integer number (18438056).

Almost surely, 2^2043573840 is an apocalyptic number.

2043573840 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 2043573840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4425133440).

2043573840 is an abundant number, since it is smaller than the sum of its proper divisors (6806693040).

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

2043573840 is a wasteful number, since it uses less digits than its factorization.

2043573840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 2043573840 is about 45205.9049240251. The cubic root of 2043573840 is about 1269.0053261126.

The spelling of 2043573840 in words is "two billion, forty-three million, five hundred seventy-three thousand, eight hundred forty".