442561043 has 4 divisors (see below), whose sum is σ = 442903560. Its totient is φ = 442218528.

The previous prime is 442561003. The next prime is 442561061. The reversal of 442561043 is 340165244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442561043 - 2¹⁴ = 442544659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442560997 and 442561015.

It is not an unprimeable number, because it can be changed into a prime (442561003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169313 + ... + 171906.

It is an arithmetic number, because the mean of its divisors is an integer number (110725890).

Almost surely, 2^442561043 is an apocalyptic number.

442561043 is a deficient number, since it is larger than the sum of its proper divisors (342517).

442561043 is a wasteful number, since it uses less digits than its factorization.

442561043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342516.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 442561043 is about 21037.1348571995. The cubic root of 442561043 is about 762.0633238456.

The spelling of 442561043 in words is "four hundred forty-two million, five hundred sixty-one thousand, forty-three".