442563 has 8 divisors (see below), whose sum is σ = 643776. Its totient is φ = 268200.

The previous prime is 442537. The next prime is 442571. The reversal of 442563 is 365244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442563 - 2⁵ = 442531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6673 + ... + 6738.

It is an arithmetic number, because the mean of its divisors is an integer number (80472).

2⁴⁴²⁵⁶³ is an apocalyptic number.

442563 is a deficient number, since it is larger than the sum of its proper divisors (201213).

442563 is a wasteful number, since it uses less digits than its factorization.

442563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13425.

The product of its digits is 2880, while the sum is 24.

The square root of 442563 is about 665.2540867969. The cubic root of 442563 is about 76.2064447122.

The spelling of 442563 in words is "four hundred forty-two thousand, five hundred sixty-three".