442163225 has 12 divisors (see below), whose sum is σ = 626608704. Its totient is φ = 303197520.

The previous prime is 442163219. The next prime is 442163233. The reversal of 442163225 is 522361244.

It is not a de Polignac number, because 442163225 - 2¹⁴ = 442146841 is a prime.

It is a Duffinian number.

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, 1263149 + ... + 1263498.

It is an arithmetic number, because the mean of its divisors is an integer number (52217392).

Almost surely, 2^442163225 is an apocalyptic number.

It is an amenable number.

442163225 is a deficient number, since it is larger than the sum of its proper divisors (184445479).

442163225 is a wasteful number, since it uses less digits than its factorization.

442163225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526664 (or 2526659 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 442163225 is about 21027.6775940663. The cubic root of 442163225 is about 761.8349158892.

The spelling of 442163225 in words is "four hundred forty-two million, one hundred sixty-three thousand, two hundred twenty-five".