42244105 has 4 divisors (see below), whose sum is σ = 50692932. Its totient is φ = 33795280.

The previous prime is 42244093. The next prime is 42244109. The reversal of 42244105 is 50144224.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29909961 + 12334144 = 5469^2 + 3512^2 .

It is not a de Polignac number, because 42244105 - 2⁷ = 42243977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42244109) 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, 4224406 + ... + 4224415.

It is an arithmetic number, because the mean of its divisors is an integer number (12673233).

Almost surely, 2^42244105 is an apocalyptic number.

It is an amenable number.

42244105 is a deficient number, since it is larger than the sum of its proper divisors (8448827).

42244105 is an equidigital number, since it uses as much as digits as its factorization.

42244105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448826.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42244105 is about 6499.5465226429. The cubic root of 42244105 is about 348.2747890184.

Adding to 42244105 its reverse (50144224), we get a palindrome (92388329).

The spelling of 42244105 in words is "forty-two million, two hundred forty-four thousand, one hundred five".