128733000 has 256 divisors, whose sum is σ = 452874240. Its totient is φ = 30176000.

The previous prime is 128732969. The next prime is 128733019. The reversal of 128733000 is 337821.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1550959 + ... + 1551041.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 2^128733000 is an apocalyptic number.

128733000 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 128733000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226437120).

128733000 is an abundant number, since it is smaller than the sum of its proper divisors (324141240).

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

128733000 is a wasteful number, since it uses less digits than its factorization.

128733000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 128733000 is about 11346.0565836770. The cubic root of 128733000 is about 504.9285916742.

The spelling of 128733000 in words is "one hundred twenty-eight million, seven hundred thirty-three thousand".