2043855072 has 288 divisors, whose sum is σ = 7239456000. Its totient is φ = 558302976.

The previous prime is 2043855071. The next prime is 2043855083. The reversal of 2043855072 is 2705583402.

2043855072 is a `hidden beast` number, since 2 + 0 + 4 + 38 + 550 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043855071) 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, 972679 + ... + 974777.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^2043855072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043855072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3619728000).

2043855072 is an abundant number, since it is smaller than the sum of its proper divisors (5195600928).

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

2043855072 is a wasteful number, since it uses less digits than its factorization.

2043855072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2043855072 is about 45209.0153841023. The cubic root of 2043855072 is about 1269.0635359880.

The spelling of 2043855072 in words is "two billion, forty-three million, eight hundred fifty-five thousand, seventy-two".