189442 has 16 divisors (see below), whose sum is σ = 316800. Its totient is φ = 84240.

The previous prime is 189439. The next prime is 189463. The reversal of 189442 is 244981.

It is a self number, because there is not a number n which added to its sum of digits gives 189442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684 + ... + 1792.

It is an arithmetic number, because the mean of its divisors is an integer number (19800).

2¹⁸⁹⁴⁴² is an apocalyptic number.

189442 is the 218-th decagonal number.

189442 is a deficient number, since it is larger than the sum of its proper divisors (127358).

189442 is a wasteful number, since it uses less digits than its factorization.

189442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its digits is 2304, while the sum is 28.

The square root of 189442 is about 435.2493538192. The cubic root of 189442 is about 57.4326369289.

It can be divided in two parts, 1894 and 42, that added together give a square (1936 = 44²).

The spelling of 189442 in words is "one hundred eighty-nine thousand, four hundred forty-two".