188345352 has 64 divisors (see below), whose sum is σ = 509664960. Its totient is φ = 57657600.

The previous prime is 188345279. The next prime is 188345357. The reversal of 188345352 is 253543881.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 188345352.

It is not an unprimeable number, because it can be changed into a prime (188345357) 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 15 ways as a sum of consecutive naturals, for example, 64402 + ... + 67262.

It is an arithmetic number, because the mean of its divisors is an integer number (7963515).

Almost surely, 2^188345352 is an apocalyptic number.

188345352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188345352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254832480).

188345352 is an abundant number, since it is smaller than the sum of its proper divisors (321319608).

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

188345352 is a wasteful number, since it uses less digits than its factorization.

188345352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094 (or 3090 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 188345352 is about 13723.8971141582. The cubic root of 188345352 is about 573.2159975615.

The spelling of 188345352 in words is "one hundred eighty-eight million, three hundred forty-five thousand, three hundred fifty-two".