188825240 has 32 divisors (see below), whose sum is σ = 425461680. Its totient is φ = 75422592.

The previous prime is 188825207. The next prime is 188825243. The reversal of 188825240 is 42528881.

It is a super-2 number, since 2×188825240² = 71309942522115200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188825194 and 188825203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188825243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28919 + ... + 34841.

Almost surely, 2^188825240 is an apocalyptic number.

188825240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188825240 is an abundant number, since it is smaller than the sum of its proper divisors (236636440).

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

188825240 is a wasteful number, since it uses less digits than its factorization.

188825240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731 (or 6727 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 188825240 is about 13741.3696551690. The cubic root of 188825240 is about 573.7024199401.

The spelling of 188825240 in words is "one hundred eighty-eight million, eight hundred twenty-five thousand, two hundred forty".