42228663 has 8 divisors (see below), whose sum is σ = 59617008. Its totient is φ = 26496384.

The previous prime is 42228587. The next prime is 42228679. The reversal of 42228663 is 36682224.

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

It is not a de Polignac number, because 42228663 - 2¹³ = 42220471 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42228163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413956 + ... + 414057.

It is an arithmetic number, because the mean of its divisors is an integer number (7452126).

Almost surely, 2^42228663 is an apocalyptic number.

42228663 is a deficient number, since it is larger than the sum of its proper divisors (17388345).

42228663 is a wasteful number, since it uses less digits than its factorization.

42228663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828033.

The product of its digits is 27648, while the sum is 33.

The square root of 42228663 is about 6498.3584850330. The cubic root of 42228663 is about 348.2323474775.

The spelling of 42228663 in words is "forty-two million, two hundred twenty-eight thousand, six hundred sixty-three".