42227985 has 16 divisors (see below), whose sum is σ = 67682880. Its totient is φ = 22482240.

The previous prime is 42227963. The next prime is 42228019. The reversal of 42227985 is 58972224.

It is not a de Polignac number, because 42227985 - 2⁸ = 42227729 is a prime.

It is a Curzon 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, 7786 + ... + 12044.

It is an arithmetic number, because the mean of its divisors is an integer number (4230180).

Almost surely, 2^42227985 is an apocalyptic number.

It is an amenable number.

42227985 is a deficient number, since it is larger than the sum of its proper divisors (25454895).

42227985 is a wasteful number, since it uses less digits than its factorization.

42227985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928.

The product of its digits is 80640, while the sum is 39.

The square root of 42227985 is about 6498.3063178031. The cubic root of 42227985 is about 348.2304837924.

The spelling of 42227985 in words is "forty-two million, two hundred twenty-seven thousand, nine hundred eighty-five".