188490606 has 16 divisors (see below), whose sum is σ = 379951104. Its totient is φ = 62335224.

The previous prime is 188490581. The next prime is 188490607. The reversal of 188490606 is 606094881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188490607) 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, 122920 + ... + 124443.

It is an arithmetic number, because the mean of its divisors is an integer number (23746944).

Almost surely, 2^188490606 is an apocalyptic number.

188490606 is an abundant number, since it is smaller than the sum of its proper divisors (191460498).

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

188490606 is a wasteful number, since it uses less digits than its factorization.

188490606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247495.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 188490606 is about 13729.1881041815. The cubic root of 188490606 is about 573.3633165168.

The spelling of 188490606 in words is "one hundred eighty-eight million, four hundred ninety thousand, six hundred six".