42222005 has 16 divisors (see below), whose sum is σ = 59318784. Its totient is φ = 28245120.

The previous prime is 42221989. The next prime is 42222023. The reversal of 42222005 is 50022224.

It is not a de Polignac number, because 42222005 - 2⁴ = 42221989 is a prime.

It is a super-4 number, since 4×42222005⁴ (a number of 32 digits) contains 4444 as substring.

It is a Curzon number.

It is a zygodrome in base 3.

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, 13277 + ... + 16146.

It is an arithmetic number, because the mean of its divisors is an integer number (3707424).

Almost surely, 2^42222005 is an apocalyptic number.

It is an amenable number.

42222005 is a deficient number, since it is larger than the sum of its proper divisors (17096779).

42222005 is a wasteful number, since it uses less digits than its factorization.

42222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29476.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 42222005 is about 6497.8461816205. The cubic root of 42222005 is about 348.2140451155.

Adding to 42222005 its reverse (50022224), we get a palindrome (92244229).

The spelling of 42222005 in words is "forty-two million, two hundred twenty-two thousand, five".