2004420043 has 4 divisors (see below), whose sum is σ = 2024265888. Its totient is φ = 1984574200.

The previous prime is 2004420001. The next prime is 2004420073. The reversal of 2004420043 is 3400244002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3400244002 = 2 ⋅1700122001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2004420043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2004420043.

It is not an unprimeable number, because it can be changed into a prime (2004420073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9922771 + ... + 9922972.

It is an arithmetic number, because the mean of its divisors is an integer number (506066472).

Almost surely, 2^2004420043 is an apocalyptic number.

2004420043 is a deficient number, since it is larger than the sum of its proper divisors (19845845).

2004420043 is a wasteful number, since it uses less digits than its factorization.

2004420043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19845844.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2004420043 is about 44770.7498597019. The cubic root of 2004420043 is about 1260.8485178582.

Adding to 2004420043 its reverse (3400244002), we get a palindrome (5404664045).

The spelling of 2004420043 in words is "two billion, four million, four hundred twenty thousand, forty-three".