422444025 has 48 divisors (see below), whose sum is σ = 783432000. Its totient is φ = 223159680.

The previous prime is 422444023. The next prime is 422444069. The reversal of 422444025 is 520444224.

It is not a de Polignac number, because 422444025 - 2¹ = 422444023 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 422444025.

It is not an unprimeable number, because it can be changed into a prime (422444023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69301 + ... + 75149.

It is an arithmetic number, because the mean of its divisors is an integer number (16321500).

Almost surely, 2^422444025 is an apocalyptic number.

422444025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

422444025 is a deficient number, since it is larger than the sum of its proper divisors (360987975).

422444025 is a wasteful number, since it uses less digits than its factorization.

422444025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5975 (or 5964 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 422444025 is about 20553.4431422086. The cubic root of 422444025 is about 750.3370485084.

Adding to 422444025 its reverse (520444224), we get a palindrome (942888249).

The spelling of 422444025 in words is "four hundred twenty-two million, four hundred forty-four thousand, twenty-five".