128330532 has 36 divisors (see below), whose sum is σ = 353882256. Its totient is φ = 38887920.

The previous prime is 128330513. The next prime is 128330551. The reversal of 128330532 is 235033821.

128330532 is a `hidden beast` number, since 128 + 3 + 3 + 0 + 532 = 666.

It is an interprime number because it is at equal distance from previous prime (128330513) and next prime (128330551).

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

It is a junction number, because it is equal to n+sod(n) for n = 128330496 and 128330505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161638 + ... + 162429.

Almost surely, 2^128330532 is an apocalyptic number.

128330532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128330532 is an abundant number, since it is smaller than the sum of its proper divisors (225551724).

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

128330532 is a wasteful number, since it uses less digits than its factorization.

128330532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324088 (or 324083 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 128330532 is about 11328.3066695778. The cubic root of 128330532 is about 504.4018431654.

The spelling of 128330532 in words is "one hundred twenty-eight million, three hundred thirty thousand, five hundred thirty-two".