128632 has 16 divisors (see below), whose sum is σ = 275760. Its totient is φ = 55104.

The previous prime is 128629. The next prime is 128657. The reversal of 128632 is 236821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (17235).

2¹²⁸⁶³² is an apocalyptic number.

It is an amenable number.

128632 is an abundant number, since it is smaller than the sum of its proper divisors (147128).

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

128632 is a wasteful number, since it uses less digits than its factorization.

128632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2306 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 128632 is about 358.6530356765. The cubic root of 128632 is about 50.4796506582.

The spelling of 128632 in words is "one hundred twenty-eight thousand, six hundred thirty-two".