42222422 has 16 divisors (see below), whose sum is σ = 70066944. Its totient is φ = 18921000.

The previous prime is 42222421. The next prime is 42222437. The reversal of 42222422 is 22422224.

It is a junction number, because it is equal to n+sod(n) for n = 42222394 and 42222403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222421) 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, 11954 + ... + 15077.

It is an arithmetic number, because the mean of its divisors is an integer number (4379184).

Almost surely, 2^42222422 is an apocalyptic number.

42222422 is a deficient number, since it is larger than the sum of its proper divisors (27844522).

42222422 is a wasteful number, since it uses less digits than its factorization.

42222422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27115.

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

The square root of 42222422 is about 6497.8782690968. The cubic root of 42222422 is about 348.2151914749.

Adding to 42222422 its reverse (22422224), we get a palindrome (64644646).

The spelling of 42222422 in words is "forty-two million, two hundred twenty-two thousand, four hundred twenty-two".