188704442 has 4 divisors (see below), whose sum is σ = 283056666. Its totient is φ = 94352220.

The previous prime is 188704429. The next prime is 188704457. The reversal of 188704442 is 244407881.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 99420841 + 89283601 = 9971^2 + 9449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 188704396 and 188704405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47176109 + ... + 47176112.

Almost surely, 2^188704442 is an apocalyptic number.

188704442 is a deficient number, since it is larger than the sum of its proper divisors (94352224).

188704442 is an equidigital number, since it uses as much as digits as its factorization.

188704442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94352223.

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 188704442 is about 13736.9735385928. The cubic root of 188704442 is about 573.5800547865.

The spelling of 188704442 in words is "one hundred eighty-eight million, seven hundred four thousand, four hundred forty-two".