442078 has 24 divisors (see below), whose sum is σ = 833112. Its totient is φ = 174384.

The previous prime is 442069. The next prime is 442097. The reversal of 442078 is 870244.

It is a congruent number.

It is an unprimeable number.

442078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1101 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (34713).

2⁴⁴²⁰⁷⁸ is an apocalyptic number.

442078 is a deficient number, since it is larger than the sum of its proper divisors (391034).

442078 is a wasteful number, since it uses less digits than its factorization.

442078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 442078 is about 664.8894644977. The cubic root of 442078 is about 76.1785965977.

The spelling of 442078 in words is "four hundred forty-two thousand, seventy-eight".