442868255 has 8 divisors (see below), whose sum is σ = 535321872. Its totient is φ = 351707968.

The previous prime is 442868249. The next prime is 442868267. The reversal of 442868255 is 552868244.

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 442868255 - 2¹⁶ = 442802719 is a prime.

It is a super-2 number, since 2×442868255² = 392264582573490050, which contains 22 as substring.

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, 322577 + ... + 323946.

It is an arithmetic number, because the mean of its divisors is an integer number (66915234).

Almost surely, 2^442868255 is an apocalyptic number.

442868255 is a deficient number, since it is larger than the sum of its proper divisors (92453617).

442868255 is a wasteful number, since it uses less digits than its factorization.

442868255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646665.

The product of its digits is 614400, while the sum is 44.

The square root of 442868255 is about 21044.4352502033. The cubic root of 442868255 is about 762.2396165482.

The spelling of 442868255 in words is "four hundred forty-two million, eight hundred sixty-eight thousand, two hundred fifty-five".