442678 has 8 divisors (see below), whose sum is σ = 667800. Its totient is φ = 220080.

The previous prime is 442633. The next prime is 442691. The reversal of 442678 is 876244.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (83475).

2⁴⁴²⁶⁷⁸ is an apocalyptic number.

442678 is a deficient number, since it is larger than the sum of its proper divisors (225122).

442678 is a wasteful number, since it uses less digits than its factorization.

442678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its digits is 10752, while the sum is 31.

The square root of 442678 is about 665.3405143233. The cubic root of 442678 is about 76.2130448891.

The spelling of 442678 in words is "four hundred forty-two thousand, six hundred seventy-eight".