187442 has 16 divisors (see below), whose sum is σ = 307800. Its totient is φ = 85248.

The previous prime is 187441. The next prime is 187463. The reversal of 187442 is 244781.

187442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 177241 + 10201 = 421^2 + 101^2 .

It is not an unprimeable number, because it can be changed into a prime (187441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184 + ... + 1332.

2¹⁸⁷⁴⁴² is an apocalyptic number.

187442 is a deficient number, since it is larger than the sum of its proper divisors (120358).

187442 is a wasteful number, since it uses less digits than its factorization.

187442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 1792, while the sum is 26.

The square root of 187442 is about 432.9457240810. The cubic root of 187442 is about 57.2298098812.

It can be divided in two parts, 18 and 7442, that multiplied together give a square (133956 = 366²).

The spelling of 187442 in words is "one hundred eighty-seven thousand, four hundred forty-two".