42220443 has 8 divisors (see below), whose sum is σ = 56926800. Its totient is φ = 27830528.

The previous prime is 42220393. The next prime is 42220463. The reversal of 42220443 is 34402224.

42220443 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 42220443 - 2⁶ = 42220379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42220463) 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, 78798 + ... + 79331.

It is an arithmetic number, because the mean of its divisors is an integer number (7115850).

Almost surely, 2^42220443 is an apocalyptic number.

42220443 is a deficient number, since it is larger than the sum of its proper divisors (14706357).

42220443 is a wasteful number, since it uses less digits than its factorization.

42220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158221.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42220443 is about 6497.7259868357. The cubic root of 42220443 is about 348.2097510115.

Adding to 42220443 its reverse (34402224), we get a palindrome (76622667).

The spelling of 42220443 in words is "forty-two million, two hundred twenty thousand, four hundred forty-three".