128430288 has 120 divisors (see below), whose sum is σ = 415096448. Its totient is φ = 36308736.

The previous prime is 128430271. The next prime is 128430307. The reversal of 128430288 is 882034821.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103206 + ... + 104442.

Almost surely, 2^128430288 is an apocalyptic number.

128430288 is a gapful number since it is divisible by the number (18) 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 128430288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207548224).

128430288 is an abundant number, since it is smaller than the sum of its proper divisors (286666160).

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

128430288 is a wasteful number, since it uses less digits than its factorization.

128430288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 128430288 is about 11332.7087671042. The cubic root of 128430288 is about 504.5325059607.

The spelling of 128430288 in words is "one hundred twenty-eight million, four hundred thirty thousand, two hundred eighty-eight".