128336 has 20 divisors (see below), whose sum is σ = 268212. Its totient is φ = 59136.

The previous prime is 128327. The next prime is 128339. The reversal of 128336 is 633821.

It can be written as a sum of positive squares in 2 ways, for example, as 10000 + 118336 = 100^2 + 344^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128339) by changing a digit.

128336 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101 + ... + 516.

2¹²⁸³³⁶ is an apocalyptic number.

128336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128336 is an abundant number, since it is smaller than the sum of its proper divisors (139876).

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

128336 is a wasteful number, since it uses less digits than its factorization.

128336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 632 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 128336 is about 358.2401429209. The cubic root of 128336 is about 50.4409007036.

It can be divided in two parts, 128 and 336, that added together give a palindrome (464).

The spelling of 128336 in words is "one hundred twenty-eight thousand, three hundred thirty-six".