422424444 has 48 divisors (see below), whose sum is σ = 1071439488. Its totient is φ = 128756928.

The previous prime is 422424439. The next prime is 422424467. The reversal of 422424444 is 444424224.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4039 + ... + 29345.

It is an arithmetic number, because the mean of its divisors is an integer number (22321656).

Almost surely, 2^422424444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422424444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535719744).

422424444 is an abundant number, since it is smaller than the sum of its proper divisors (649015044).

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

422424444 is a wasteful number, since it uses less digits than its factorization.

422424444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25434 (or 25432 counting only the distinct ones).

The product of its digits is 32768, while the sum is 30.

The square root of 422424444 is about 20552.9667931421. The cubic root of 422424444 is about 750.3254551959.

Adding to 422424444 its reverse (444424224), we get a palindrome (866848668).

The spelling of 422424444 in words is "four hundred twenty-two million, four hundred twenty-four thousand, four hundred forty-four".