422240025 has 12 divisors (see below), whose sum is σ = 698103632. Its totient is φ = 225194640.

The previous prime is 422240023. The next prime is 422240111. The reversal of 422240025 is 520042224.

It is not a de Polignac number, because 422240025 - 2¹ = 422240023 is a prime.

It is a super-3 number, since 3×422240025³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 422239983 and 422240010.

It is not an unprimeable number, because it can be changed into a prime (422240023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2814859 + ... + 2815008.

Almost surely, 2^422240025 is an apocalyptic number.

It is an amenable number.

422240025 is a deficient number, since it is larger than the sum of its proper divisors (275863607).

422240025 is a wasteful number, since it uses less digits than its factorization.

422240025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629880 (or 5629875 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 422240025 is about 20548.4798707836. The cubic root of 422240025 is about 750.2162487538.

Adding to 422240025 its reverse (520042224), we get a palindrome (942282249).

The spelling of 422240025 in words is "four hundred twenty-two million, two hundred forty thousand, twenty-five".