422505224 has 8 divisors (see below), whose sum is σ = 792197310. Its totient is φ = 211252608.

The previous prime is 422505221. The next prime is 422505227.

422505224 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (422505221) and next prime (422505227).

It can be written as a sum of positive squares in only one way, i.e., 419512324 + 2992900 = 20482^2 + 1730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 422505193 and 422505202.

It is not an unprimeable number, because it can be changed into a prime (422505221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26406569 + ... + 26406584.

Almost surely, 2^422505224 is an apocalyptic number.

It is an amenable number.

422505224 is a deficient number, since it is larger than the sum of its proper divisors (369692086).

422505224 is a wasteful number, since it uses less digits than its factorization.

422505224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52813159 (or 52813155 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 422505224 is about 20554.9318656132. The cubic root of 422505224 is about 750.3732802590.

It can be divided in two parts, 42250 and 5224, that added together give a palindrome (47474).

The spelling of 422505224 in words is "four hundred twenty-two million, five hundred five thousand, two hundred twenty-four".