189428943000 has 1024 divisors, whose sum is σ = 728415866880. Its totient is φ = 40415232000.

The previous prime is 189428942933. The next prime is 189428943007. The reversal of 189428943000 is 349824981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189428943007) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 683858862 + ... + 683859138.

It is an arithmetic number, because the mean of its divisors is an integer number (711343620).

Almost surely, 2^189428943000 is an apocalyptic number.

189428943000 is a gapful number since it is divisible by the number (10) 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 189428943000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364207933440).

189428943000 is an abundant number, since it is smaller than the sum of its proper divisors (538986923880).

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

189428943000 is a wasteful number, since it uses less digits than its factorization.

189428943000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 189428943000 in words is "one hundred eighty-nine billion, four hundred twenty-eight million, nine hundred forty-three thousand".