42444043 has 16 divisors (see below), whose sum is σ = 46046880. Its totient is φ = 38997504.

The previous prime is 42444041. The next prime is 42444071. The reversal of 42444043 is 34044424.

It is a cyclic number.

It is not a de Polignac number, because 42444043 - 2¹ = 42444041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42443999 and 42444017.

It is not an unprimeable number, because it can be changed into a prime (42444041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113605 + ... + 113977.

It is an arithmetic number, because the mean of its divisors is an integer number (2877930).

Almost surely, 2^42444043 is an apocalyptic number.

42444043 is a deficient number, since it is larger than the sum of its proper divisors (3602837).

42444043 is a wasteful number, since it uses less digits than its factorization.

42444043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 42444043 is about 6514.9092856309. The cubic root of 42444043 is about 348.8233767745.

Adding to 42444043 its reverse (34044424), we get a palindrome (76488467).

The spelling of 42444043 in words is "forty-two million, four hundred forty-four thousand, forty-three".