42445011 has 8 divisors (see below), whose sum is σ = 64678144. Its totient is φ = 24254280.

The previous prime is 42445003. The next prime is 42445019. The reversal of 42445011 is 11054424.

It is a happy number.

42445011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42445003) and next prime (42445019).

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

It is not a de Polignac number, because 42445011 - 2³ = 42445003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2021191 = 42445011 / (4 + 2 + 4 + 4 + 5 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42445019) 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 7 ways as a sum of consecutive naturals, for example, 1010575 + ... + 1010616.

It is an arithmetic number, because the mean of its divisors is an integer number (8084768).

Almost surely, 2^42445011 is an apocalyptic number.

42445011 is a deficient number, since it is larger than the sum of its proper divisors (22233133).

42445011 is a wasteful number, since it uses less digits than its factorization.

42445011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021201.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 42445011 is about 6514.9835763415. The cubic root of 42445011 is about 348.8260285676.

Adding to 42445011 its reverse (11054424), we get a palindrome (53499435).

The spelling of 42445011 in words is "forty-two million, four hundred forty-five thousand, eleven".