188385142 has 24 divisors (see below), whose sum is σ = 311583888. Its totient is φ = 85359120.

The previous prime is 188385103. The next prime is 188385179. The reversal of 188385142 is 241583881.

It is a junction number, because it is equal to n+sod(n) for n = 188385095 and 188385104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89223 + ... + 91309.

It is an arithmetic number, because the mean of its divisors is an integer number (12982662).

Almost surely, 2^188385142 is an apocalyptic number.

188385142 is a deficient number, since it is larger than the sum of its proper divisors (123198746).

188385142 is a wasteful number, since it uses less digits than its factorization.

188385142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2473 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 188385142 is about 13725.3466987177. The cubic root of 188385142 is about 573.2563607530.

It can be divided in two parts, 1883 and 85142, that added together give a square (87025 = 295²).

The spelling of 188385142 in words is "one hundred eighty-eight million, three hundred eighty-five thousand, one hundred forty-two".