42404222 has 16 divisors (see below), whose sum is σ = 76969440. Its totient is φ = 17104128.

The previous prime is 42404189. The next prime is 42404227. The reversal of 42404222 is 22240424.

42404222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42404194 and 42404203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404227) 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, 88847 + ... + 89322.

It is an arithmetic number, because the mean of its divisors is an integer number (4810590).

Almost surely, 2^42404222 is an apocalyptic number.

42404222 is a deficient number, since it is larger than the sum of its proper divisors (34565218).

42404222 is a wasteful number, since it uses less digits than its factorization.

42404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178195.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 42404222 is about 6511.8524246177. The cubic root of 42404222 is about 348.7142539468.

Adding to 42404222 its reverse (22240424), we get a palindrome (64644646).

It can be divided in two parts, 4240422 and 2, that added together give a palindrome (4240424).

The spelling of 42404222 in words is "forty-two million, four hundred four thousand, two hundred twenty-two".