128548332 has 36 divisors (see below), whose sum is σ = 354482856. Its totient is φ = 38953920.

The previous prime is 128548331. The next prime is 128548361. The reversal of 128548332 is 233845821.

128548332 is a `hidden beast` number, since 1 + 285 + 48 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (128548331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161913 + ... + 162704.

It is an arithmetic number, because the mean of its divisors is an integer number (9846746).

Almost surely, 2^128548332 is an apocalyptic number.

128548332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128548332 is an abundant number, since it is smaller than the sum of its proper divisors (225934524).

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

128548332 is a wasteful number, since it uses less digits than its factorization.

128548332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324638 (or 324633 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 128548332 is about 11337.9156814646. The cubic root of 128548332 is about 504.6870354426.

The spelling of 128548332 in words is "one hundred twenty-eight million, five hundred forty-eight thousand, three hundred thirty-two".