442555 has 8 divisors (see below), whose sum is σ = 540144. Its totient is φ = 348000.

The previous prime is 442537. The next prime is 442571. The reversal of 442555 is 555244.

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

It is not a de Polignac number, because 442555 - 2¹¹ = 440507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (67518).

2⁴⁴²⁵⁵⁵ is an apocalyptic number.

442555 is a deficient number, since it is larger than the sum of its proper divisors (97589).

442555 is a wasteful number, since it uses less digits than its factorization.

442555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its digits is 4000, while the sum is 25.

The square root of 442555 is about 665.2480740295. The cubic root of 442555 is about 76.2059855270.

Adding to 442555 its reverse (555244), we get a palindrome (997799).

The spelling of 442555 in words is "four hundred forty-two thousand, five hundred fifty-five".