188132020 has 12 divisors (see below), whose sum is σ = 395077284. Its totient is φ = 75252800.

The previous prime is 188132011. The next prime is 188132041. The reversal of 188132020 is 20231881.

It can be written as a sum of positive squares in 2 ways, for example, as 68492176 + 119639844 = 8276^2 + 10938^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703281 + ... + 4703320.

It is an arithmetic number, because the mean of its divisors is an integer number (32923107).

Almost surely, 2^188132020 is an apocalyptic number.

188132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188132020 is an abundant number, since it is smaller than the sum of its proper divisors (206945264).

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

188132020 is a wasteful number, since it uses less digits than its factorization.

188132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406610 (or 9406608 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 188132020 is about 13716.1226299563. The cubic root of 188132020 is about 572.9994954244. Note that the first 3 decimals are identical.

The spelling of 188132020 in words is "one hundred eighty-eight million, one hundred thirty-two thousand, twenty".