188534454 has 32 divisors (see below), whose sum is σ = 420266880. Its totient is φ = 56034432.

The previous prime is 188534447. The next prime is 188534459. The reversal of 188534454 is 454435881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188534459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46704 + ... + 50579.

It is an arithmetic number, because the mean of its divisors is an integer number (13133340).

Almost surely, 2^188534454 is an apocalyptic number.

188534454 is an abundant number, since it is smaller than the sum of its proper divisors (231732426).

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

188534454 is a wasteful number, since it uses less digits than its factorization.

188534454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97324.

The product of its digits is 307200, while the sum is 42.

The square root of 188534454 is about 13730.7849010900. The cubic root of 188534454 is about 573.4077729949.

The spelling of 188534454 in words is "one hundred eighty-eight million, five hundred thirty-four thousand, four hundred fifty-four".