188369442 has 64 divisors (see below), whose sum is σ = 444873600. Its totient is φ = 58968000.

The previous prime is 188369437. The next prime is 188369453. The reversal of 188369442 is 244963881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56317 + ... + 59567.

It is an arithmetic number, because the mean of its divisors is an integer number (6951150).

Almost surely, 2^188369442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188369442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222436800).

188369442 is an abundant number, since it is smaller than the sum of its proper divisors (256504158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188369442 is a wasteful number, since it uses less digits than its factorization.

188369442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 188369442 is about 13724.7747522500. The cubic root of 188369442 is about 573.2404352669.

The spelling of 188369442 in words is "one hundred eighty-eight million, three hundred sixty-nine thousand, four hundred forty-two".