42244422 has 64 divisors (see below), whose sum is σ = 101896704. Its totient is φ = 11517440.

The previous prime is 42244421. The next prime is 42244453. The reversal of 42244422 is 22444224.

It is a super-2 number, since 2×42244422² = 3569182380228168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42244392 and 42244401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24988 + ... + 26624.

It is an arithmetic number, because the mean of its divisors is an integer number (1592136).

Almost surely, 2^42244422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42244422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50948352).

42244422 is an abundant number, since it is smaller than the sum of its proper divisors (59652282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42244422 is a wasteful number, since it uses less digits than its factorization.

42244422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its digits is 4096, while the sum is 24.

The square root of 42244422 is about 6499.5709089139. The cubic root of 42244422 is about 348.2756601682.

Adding to 42244422 its reverse (22444224), we get a palindrome (64688646).

It can be divided in two parts, 4224 and 4422, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 42244422 in words is "forty-two million, two hundred forty-four thousand, four hundred twenty-two".