442025 has 6 divisors (see below), whose sum is σ = 548142. Its totient is φ = 353600.

The previous prime is 442019. The next prime is 442027. The reversal of 442025 is 520244.

It can be written as a sum of positive squares in 3 ways, for example, as 7744 + 434281 = 88^2 + 659^2 .

It is not a de Polignac number, because 442025 - 2⁴ = 442009 is a prime.

It is a super-2 number, since 2×442025² = 390772201250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441994 and 442012.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442025.

It is not an unprimeable number, because it can be changed into a prime (442027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8816 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (91357).

2⁴⁴²⁰²⁵ is an apocalyptic number.

It is an amenable number.

442025 is a deficient number, since it is larger than the sum of its proper divisors (106117).

442025 is a wasteful number, since it uses less digits than its factorization.

442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17691 (or 17686 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 442025 is about 664.8496070541. The cubic root of 442025 is about 76.1755521674.

Adding to 442025 its reverse (520244), we get a palindrome (962269).

It can be divided in two parts, 4 and 42025, that multiplied together give a square (168100 = 410²).

The spelling of 442025 in words is "four hundred forty-two thousand, twenty-five".