442213140225 has 24 divisors (see below), whose sum is σ = 731174403232. Its totient is φ = 235831305600.

The previous prime is 442213140163. The next prime is 442213140247. The reversal of 442213140225 is 522041312244.

It is a happy number.

It is not a de Polignac number, because 442213140225 - 2⁷ = 442213140097 is a prime.

It is a super-2 number, since 2×442213140225² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442213140192 and 442213140201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 984765 + ... + 1361685.

Almost surely, 2^442213140225 is an apocalyptic number.

It is an amenable number.

442213140225 is a deficient number, since it is larger than the sum of its proper divisors (288961263007).

442213140225 is a wasteful number, since it uses less digits than its factorization.

442213140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392577 (or 392572 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 442213140225 its reverse (522041312244), we get a palindrome (964254452469).

The spelling of 442213140225 in words is "four hundred forty-two billion, two hundred thirteen million, one hundred forty thousand, two hundred twenty-five".