188990942 has 32 divisors (see below), whose sum is σ = 341299200. Its totient is φ = 78374520.

The previous prime is 188990927. The next prime is 188990953. The reversal of 188990942 is 249099881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16823 + ... + 25709.

It is an arithmetic number, because the mean of its divisors is an integer number (10665600).

Almost surely, 2^188990942 is an apocalyptic number.

188990942 is a deficient number, since it is larger than the sum of its proper divisors (152308258).

188990942 is an equidigital number, since it uses as much as digits as its factorization.

188990942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8941 (or 8927 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 188990942 is about 13747.3976446453. The cubic root of 188990942 is about 573.8701867854.

The spelling of 188990942 in words is "one hundred eighty-eight million, nine hundred ninety thousand, nine hundred forty-two".