422055444 has 48 divisors (see below), whose sum is σ = 1030276800. Its totient is φ = 134297856.

The previous prime is 422055443. The next prime is 422055461. The reversal of 422055444 is 444550224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422055443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24159 + ... + 37785.

It is an arithmetic number, because the mean of its divisors is an integer number (21464100).

Almost surely, 2^422055444 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 422055444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515138400).

422055444 is an abundant number, since it is smaller than the sum of its proper divisors (608221356).

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

422055444 is a wasteful number, since it uses less digits than its factorization.

422055444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13752 (or 13750 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 422055444 is about 20543.9880256974. The cubic root of 422055444 is about 750.1069145361.

The spelling of 422055444 in words is "four hundred twenty-two million, fifty-five thousand, four hundred forty-four".