42220663 has 8 divisors (see below), whose sum is σ = 45247968. Its totient is φ = 39292704.

The previous prime is 42220643. The next prime is 42220669. The reversal of 42220663 is 36602224.

It is a happy number.

42220663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42220663 - 2⁵ = 42220631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42220669) 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, 23956 + ... + 25657.

It is an arithmetic number, because the mean of its divisors is an integer number (5655996).

Almost surely, 2^42220663 is an apocalyptic number.

42220663 is a deficient number, since it is larger than the sum of its proper divisors (3027305).

42220663 is a wasteful number, since it uses less digits than its factorization.

42220663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49673.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 42220663 is about 6497.7429158132. The cubic root of 42220663 is about 348.2103558213.

Adding to 42220663 its reverse (36602224), we get a palindrome (78822887).

The spelling of 42220663 in words is "forty-two million, two hundred twenty thousand, six hundred sixty-three".