128783088 has 160 divisors (see below), whose sum is σ = 434257920. Its totient is φ = 35769600.

The previous prime is 128783071. The next prime is 128783093. The reversal of 128783088 is 880387821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111313 + ... + 112463.

It is an arithmetic number, because the mean of its divisors is an integer number (2714112).

Almost surely, 2^128783088 is an apocalyptic number.

128783088 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 128783088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217128960).

128783088 is an abundant number, since it is smaller than the sum of its proper divisors (305474832).

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

128783088 is a wasteful number, since it uses less digits than its factorization.

128783088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 128783088 is about 11348.2636557317. The cubic root of 128783088 is about 504.9940697928.

The spelling of 128783088 in words is "one hundred twenty-eight million, seven hundred eighty-three thousand, eighty-eight".