442356 has 24 divisors (see below), whose sum is σ = 1042944. Its totient is φ = 145920.

The previous prime is 442333. The next prime is 442363. The reversal of 442356 is 653244.

It is a congruent number.

It is an unprimeable number.

442356 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 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (43456).

2⁴⁴²³⁵⁶ is an apocalyptic number.

It is an amenable number.

442356 is an abundant number, since it is smaller than the sum of its proper divisors (600588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442356 is a wasteful number, since it uses less digits than its factorization.

442356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 389 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 442356 is about 665.0984889473. The cubic root of 442356 is about 76.1945615121.

The spelling of 442356 in words is "four hundred forty-two thousand, three hundred fifty-six".