128802336 has 144 divisors (see below), whose sum is σ = 388481184. Its totient is φ = 37220352.

The previous prime is 128802301. The next prime is 128802367. The reversal of 128802336 is 633208821.

It is a junction number, because it is equal to n+sod(n) for n = 128802297 and 128802306.

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, 275575 + ... + 276041.

It is an arithmetic number, because the mean of its divisors is an integer number (2697786).

Almost surely, 2^128802336 is an apocalyptic number.

128802336 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 128802336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194240592).

128802336 is an abundant number, since it is smaller than the sum of its proper divisors (259678848).

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

128802336 is a wasteful number, since it uses less digits than its factorization.

128802336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 128802336 is about 11349.1116832993. Note that the first 3 decimals coincide. The cubic root of 128802336 is about 505.0192274482.

The spelling of 128802336 in words is "one hundred twenty-eight million, eight hundred two thousand, three hundred thirty-six".