128535384 has 32 divisors (see below), whose sum is σ = 321647040. Its totient is φ = 42804000.

The previous prime is 128535383. The next prime is 128535397. The reversal of 128535384 is 483535821.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128535383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32979 + ... + 36669.

It is an arithmetic number, because the mean of its divisors is an integer number (10051470).

Almost surely, 2^128535384 is an apocalyptic number.

It is an amenable number.

128535384 is an abundant number, since it is smaller than the sum of its proper divisors (193111656).

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

128535384 is a wasteful number, since it uses less digits than its factorization.

128535384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151 (or 5147 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 128535384 is about 11337.3446626624. The cubic root of 128535384 is about 504.6700900466.

The spelling of 128535384 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, three hundred eighty-four".