422133444 has 120 divisors (see below), whose sum is σ = 1183414848. Its totient is φ = 130870080.

The previous prime is 422133403. The next prime is 422133487. The reversal of 422133444 is 444331224.

It is a happy number.

422133444 is a `hidden beast` number, since 4 + 2 + 213 + 3 + 444 = 666.

It is a super-2 number, since 2×422133444² = 356393289086602272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 274959 + ... + 276489.

Almost surely, 2^422133444 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 422133444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591707424).

422133444 is an abundant number, since it is smaller than the sum of its proper divisors (761281404).

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

422133444 is a wasteful number, since it uses less digits than its factorization.

422133444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1596 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 422133444 is about 20545.8863035889. The cubic root of 422133444 is about 750.1531207366.

Adding to 422133444 its reverse (444331224), we get a palindrome (866464668).

The spelling of 422133444 in words is "four hundred twenty-two million, one hundred thirty-three thousand, four hundred forty-four".