128447000 has 64 divisors (see below), whose sum is σ = 327918240. Its totient is φ = 46704000.

The previous prime is 128446993. The next prime is 128447009. The reversal of 128447000 is 744821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128447009) 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, 5162 + ... + 16838.

Almost surely, 2^128447000 is an apocalyptic number.

128447000 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 128447000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163959120).

128447000 is an abundant number, since it is smaller than the sum of its proper divisors (199471240).

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

128447000 is a wasteful number, since it uses less digits than its factorization.

128447000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709 (or 11695 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 128447000 is about 11333.4460778706. The cubic root of 128447000 is about 504.5543891205.

It can be divided in two parts, 1284 and 47000, that added together give a palindrome (48284).

The spelling of 128447000 in words is "one hundred twenty-eight million, four hundred forty-seven thousand".