188434944 has 160 divisors (see below), whose sum is σ = 572552640. Its totient is φ = 61157376.

The previous prime is 188434943. The next prime is 188434963. The reversal of 188434944 is 449434881.

It is a super-3 number, since 3×188434944³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 188434944.

It is not an unprimeable number, because it can be changed into a prime (188434943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594274 + ... + 594590.

It is an arithmetic number, because the mean of its divisors is an integer number (3578454).

Almost surely, 2^188434944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188434944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286276320).

188434944 is an abundant number, since it is smaller than the sum of its proper divisors (384117696).

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

188434944 is an equidigital number, since it uses as much as digits as its factorization.

188434944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 365 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 188434944 is about 13727.1608135113. The cubic root of 188434944 is about 573.3068721638.

The spelling of 188434944 in words is "one hundred eighty-eight million, four hundred thirty-four thousand, nine hundred forty-four".