42445005 has 32 divisors (see below), whose sum is σ = 75043584. Its totient is φ = 20376576.

The previous prime is 42445003. The next prime is 42445019. The reversal of 42445005 is 50054424.

42445005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42445005 - 2¹ = 42445003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42445003) 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 31 ways as a sum of consecutive naturals, for example, 2247 + ... + 9483.

It is an arithmetic number, because the mean of its divisors is an integer number (2345112).

Almost surely, 2^42445005 is an apocalyptic number.

It is an amenable number.

42445005 is a deficient number, since it is larger than the sum of its proper divisors (32598579).

42445005 is a wasteful number, since it uses less digits than its factorization.

42445005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42445005 is about 6514.9831158645. The cubic root of 42445005 is about 348.8260121310.

Adding to 42445005 its reverse (50054424), we get a palindrome (92499429).

The spelling of 42445005 in words is "forty-two million, four hundred forty-five thousand, five".