442266 has 16 divisors (see below), whose sum is σ = 965088. Its totient is φ = 134000.

The previous prime is 442243. The next prime is 442271. The reversal of 442266 is 662244.

It is a zygodrome in base 10.

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 7 ways as a sum of consecutive naturals, for example, 3285 + ... + 3416.

It is an arithmetic number, because the mean of its divisors is an integer number (60318).

2⁴⁴²²⁶⁶ is an apocalyptic number.

442266 is an abundant number, since it is smaller than the sum of its proper divisors (522822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442266 is a wasteful number, since it uses less digits than its factorization.

442266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717.

The product of its digits is 2304, while the sum is 24.

The square root of 442266 is about 665.0308263532. The cubic root of 442266 is about 76.1893937470.

It can be divided in two parts, 44226 and 6, that multiplied together give a triangular number (265356 = T₇₂₈).

The spelling of 442266 in words is "four hundred forty-two thousand, two hundred sixty-six".