442190 has 16 divisors (see below), whose sum is σ = 909792. Its totient is φ = 151584.

The previous prime is 442181. The next prime is 442193. The reversal of 442190 is 91244.

It is a super-2 number, since 2×442190² = 391063992200, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442193) by changing a digit.

442190 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3089 + ... + 3228.

It is an arithmetic number, because the mean of its divisors is an integer number (56862).

2⁴⁴²¹⁹⁰ is an apocalyptic number.

442190 is an abundant number, since it is smaller than the sum of its proper divisors (467602).

It is a weird number, because it is abundant, but not a pseudoperfect number.

442190 is a wasteful number, since it uses less digits than its factorization.

442190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 442190 is about 664.9736836898. The cubic root of 442190 is about 76.1850293105.

The spelling of 442190 in words is "four hundred forty-two thousand, one hundred ninety".