42044243 has 8 divisors (see below), whose sum is σ = 42570000. Its totient is φ = 41521248.

The previous prime is 42044237. The next prime is 42044251. The reversal of 42044243 is 34244024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42044243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42044203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54005 + ... + 54777.

It is an arithmetic number, because the mean of its divisors is an integer number (5321250).

Almost surely, 2^42044243 is an apocalyptic number.

42044243 is a deficient number, since it is larger than the sum of its proper divisors (525757).

42044243 is a wasteful number, since it uses less digits than its factorization.

42044243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 42044243 is about 6484.1532215086. The cubic root of 42044243 is about 347.7246770898.

Adding to 42044243 its reverse (34244024), we get a palindrome (76288267).

The spelling of 42044243 in words is "forty-two million, forty-four thousand, two hundred forty-three".