189795408 has 80 divisors (see below), whose sum is σ = 563059200. Its totient is φ = 54483840.

The previous prime is 189795377. The next prime is 189795409. The reversal of 189795408 is 804597981.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189795409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573 + ... + 19491.

It is an arithmetic number, because the mean of its divisors is an integer number (7038240).

Almost surely, 2^189795408 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 189795408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281529600).

189795408 is an abundant number, since it is smaller than the sum of its proper divisors (373263792).

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

189795408 is a wasteful number, since it uses less digits than its factorization.

189795408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18960 (or 18954 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 189795408 is about 13776.6254213432. The cubic root of 189795408 is about 574.6832867061.

It can be divided in two parts, 189 and 795408, that added together give a palindrome (795597).

The spelling of 189795408 in words is "one hundred eighty-nine million, seven hundred ninety-five thousand, four hundred eight".