188113340 has 12 divisors (see below), whose sum is σ = 395038056. Its totient is φ = 75245328.

The previous prime is 188113333. The next prime is 188113349. The reversal of 188113340 is 43311881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188113349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4702814 + ... + 4702853.

It is an arithmetic number, because the mean of its divisors is an integer number (32919838).

Almost surely, 2^188113340 is an apocalyptic number.

188113340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188113340 is an abundant number, since it is smaller than the sum of its proper divisors (206924716).

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

188113340 is a wasteful number, since it uses less digits than its factorization.

188113340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405676 (or 9405674 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 188113340 is about 13715.4416625933. The cubic root of 188113340 is about 572.9805300460.

The spelling of 188113340 in words is "one hundred eighty-eight million, one hundred thirteen thousand, three hundred forty".