188930450 has 24 divisors (see below), whose sum is σ = 351891540. Its totient is φ = 75468800.

The previous prime is 188930429. The next prime is 188930477. The reversal of 188930450 is 54039881.

It can be written as a sum of positive squares in 6 ways, for example, as 85359121 + 103571329 = 9239^2 + 10177^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41906 + ... + 46194.

Almost surely, 2^188930450 is an apocalyptic number.

188930450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188930450 is a deficient number, since it is larger than the sum of its proper divisors (162961090).

188930450 is a wasteful number, since it uses less digits than its factorization.

188930450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 188930450 is about 13745.1973430722. The cubic root of 188930450 is about 573.8089523520.

The spelling of 188930450 in words is "one hundred eighty-eight million, nine hundred thirty thousand, four hundred fifty".