442790 has 8 divisors (see below), whose sum is σ = 797040. Its totient is φ = 177112.

The previous prime is 442789. The next prime is 442807. The reversal of 442790 is 97244.

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, 22130 + ... + 22149.

It is an arithmetic number, because the mean of its divisors is an integer number (99630).

2⁴⁴²⁷⁹⁰ is an apocalyptic number.

442790 is a deficient number, since it is larger than the sum of its proper divisors (354250).

442790 is a wasteful number, since it uses less digits than its factorization.

442790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44286.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 442790 is about 665.4246764285. The cubic root of 442790 is about 76.2194717887.

It can be divided in two parts, 44 and 2790, that multiplied together give a triangular number (122760 = T₄₉₅).

The spelling of 442790 in words is "four hundred forty-two thousand, seven hundred ninety".