442115225 has 12 divisors (see below), whose sum is σ = 555946560. Its totient is φ = 348709200.

The previous prime is 442115213. The next prime is 442115231. The reversal of 442115225 is 522511244.

It is not a de Polignac number, because 442115225 - 2¹⁰ = 442114201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442115194 and 442115203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122765 + ... + 126314.

It is an arithmetic number, because the mean of its divisors is an integer number (46328880).

Almost surely, 2^442115225 is an apocalyptic number.

It is an amenable number.

442115225 is a deficient number, since it is larger than the sum of its proper divisors (113831335).

442115225 is a wasteful number, since it uses less digits than its factorization.

442115225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249160 (or 249155 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 442115225 is about 21026.5362102273. The cubic root of 442115225 is about 761.8073473374.

Adding to 442115225 its reverse (522511244), we get a palindrome (964626469).

The spelling of 442115225 in words is "four hundred forty-two million, one hundred fifteen thousand, two hundred twenty-five".