190442 has 16 divisors (see below), whose sum is σ = 333312. Its totient is φ = 79920.

The previous prime is 190409. The next prime is 190471. The reversal of 190442 is 244091.

It is a d-powerful number, because it can be written as 1 + 9⁵ + 4³ + 0 + 4⁴ + 2¹⁷ .

It is an unprimeable number.

190442 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, 743 + ... + 965.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2¹⁹⁰⁴⁴² is an apocalyptic number.

190442 is a deficient number, since it is larger than the sum of its proper divisors (142870).

190442 is a wasteful number, since it uses less digits than its factorization.

190442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

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

The square root of 190442 is about 436.3966086028. The cubic root of 190442 is about 57.5335154325.

The spelling of 190442 in words is "one hundred ninety thousand, four hundred forty-two".