442500425 has 12 divisors (see below), whose sum is σ = 549019920. Its totient is φ = 353794320.

The previous prime is 442500391. The next prime is 442500449. The reversal of 442500425 is 524005244.

It is a de Polignac number, because none of the positive numbers 2^k-442500425 is a prime.

It is a super-2 number, since 2×442500425² = 391613252250361250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442500394 and 442500403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50414 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (45751660).

Almost surely, 2^442500425 is an apocalyptic number.

It is an amenable number.

442500425 is a deficient number, since it is larger than the sum of its proper divisors (106519495).

442500425 is a wasteful number, since it uses less digits than its factorization.

442500425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312 (or 10307 counting only the distinct ones).

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

The square root of 442500425 is about 21035.6940698423. The cubic root of 442500425 is about 762.0285287482.

Adding to 442500425 its reverse (524005244), we get a palindrome (966505669).

The spelling of 442500425 in words is "four hundred forty-two million, five hundred thousand, four hundred twenty-five".