128243032 has 32 divisors (see below), whose sum is σ = 259015680. Its totient is φ = 59352480.

The previous prime is 128243029. The next prime is 128243047. The reversal of 128243032 is 230342821.

It is a junction number, because it is equal to n+sod(n) for n = 128242988 and 128243006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5538 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (8094240).

Almost surely, 2^128243032 is an apocalyptic number.

It is an amenable number.

128243032 is an abundant number, since it is smaller than the sum of its proper divisors (130772648).

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

128243032 is a wasteful number, since it uses less digits than its factorization.

128243032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22543 (or 22539 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 128243032 is about 11324.4440040119. Note that the first 3 decimals coincide. The cubic root of 128243032 is about 504.2871778156.

Adding to 128243032 its reverse (230342821), we get a palindrome (358585853).

The spelling of 128243032 in words is "one hundred twenty-eight million, two hundred forty-three thousand, thirty-two".