128434176 has 180 divisors, whose sum is σ = 405524392. Its totient is φ = 38928384.

The previous prime is 128434169. The next prime is 128434177. The reversal of 128434176 is 671434821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128434176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128434177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916895 + ... + 1916961.

Almost surely, 2^128434176 is an apocalyptic number.

128434176 is a gapful number since it is divisible by the number (16) 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 128434176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202762196).

128434176 is an abundant number, since it is smaller than the sum of its proper divisors (277090216).

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

128434176 is an equidigital number, since it uses as much as digits as its factorization.

128434176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 85 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 128434176 is about 11332.8803046710. The cubic root of 128434176 is about 504.5375971860.

Adding to 128434176 its reverse (671434821), we get a palindrome (799868997).

The spelling of 128434176 in words is "one hundred twenty-eight million, four hundred thirty-four thousand, one hundred seventy-six".