442540255 has 8 divisors (see below), whose sum is σ = 532474272. Its totient is φ = 353081568.

The previous prime is 442540223. The next prime is 442540271. The reversal of 442540255 is 552045244.

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

It is a cyclic number.

It is not a de Polignac number, because 442540255 - 2⁵ = 442540223 is a prime.

It is a Duffinian number.

It is a congruent 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, 116779 + ... + 120508.

It is an arithmetic number, because the mean of its divisors is an integer number (66559284).

Almost surely, 2^442540255 is an apocalyptic number.

442540255 is a deficient number, since it is larger than the sum of its proper divisors (89934017).

442540255 is a wasteful number, since it uses less digits than its factorization.

442540255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237665.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 442540255 is about 21036.6407727089. The cubic root of 442540255 is about 762.0513917663.

Adding to 442540255 its reverse (552045244), we get a palindrome (994585499).

The spelling of 442540255 in words is "four hundred forty-two million, five hundred forty thousand, two hundred fifty-five".