42224005 has 16 divisors (see below), whose sum is σ = 53829360. Its totient is φ = 31685632.

The previous prime is 42223997. The next prime is 42224033. The reversal of 42224005 is 50042224.

It is a Cunningham number, because it is equal to 6498²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 12996 + 42211009 = 114^2 + 6497^2 .

It is a cyclic number.

It is not a de Polignac number, because 42224005 - 2³ = 42223997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32427 + ... + 33703.

It is an arithmetic number, because the mean of its divisors is an integer number (3364335).

Almost surely, 2^42224005 is an apocalyptic number.

It is an amenable number.

42224005 is a deficient number, since it is larger than the sum of its proper divisors (11605355).

42224005 is a wasteful number, since it uses less digits than its factorization.

42224005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 42224005 is about 6498.0000769468. Note that the first 4 decimals coincide. The cubic root of 42224005 is about 348.2195431735.

Adding to 42224005 its reverse (50042224), we get a palindrome (92266229).

The spelling of 42224005 in words is "forty-two million, two hundred twenty-four thousand, five".