2043556441 has 4 divisors (see below), whose sum is σ = 2045539584. Its totient is φ = 2041573300.

The previous prime is 2043556439. The next prime is 2043556447. The reversal of 2043556441 is 1446553402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2043556441 - 2¹ = 2043556439 is a prime.

It is a super-2 number, since 2×2043556441² = 8352245855105172962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043556397 and 2043556406.

It is not an unprimeable number, because it can be changed into a prime (2043556447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 990025 + ... + 992086.

It is an arithmetic number, because the mean of its divisors is an integer number (511384896).

Almost surely, 2^2043556441 is an apocalyptic number.

It is an amenable number.

2043556441 is a deficient number, since it is larger than the sum of its proper divisors (1983143).

2043556441 is a wasteful number, since it uses less digits than its factorization.

2043556441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983142.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2043556441 is about 45205.7124819419. The cubic root of 2043556441 is about 1269.0017246627.

The spelling of 2043556441 in words is "two billion, forty-three million, five hundred fifty-six thousand, four hundred forty-one".