442415425 has 6 divisors (see below), whose sum is σ = 548595158. Its totient is φ = 353932320.

The previous prime is 442415411. The next prime is 442415431. The reversal of 442415425 is 524514244.

It can be written as a sum of positive squares in 3 ways, for example, as 78712384 + 363703041 = 8872^2 + 19071^2 .

It is not a de Polignac number, because 442415425 - 2¹³ = 442407233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8848284 + ... + 8848333.

Almost surely, 2^442415425 is an apocalyptic number.

It is an amenable number.

442415425 is a deficient number, since it is larger than the sum of its proper divisors (106179733).

442415425 is a wasteful number, since it uses less digits than its factorization.

442415425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17696627 (or 17696622 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 442415425 is about 21033.6735973534. The cubic root of 442415425 is about 761.9797328834.

Adding to 442415425 its reverse (524514244), we get a palindrome (966929669).

The spelling of 442415425 in words is "four hundred forty-two million, four hundred fifteen thousand, four hundred twenty-five".