128734596 has 72 divisors (see below), whose sum is σ = 349177920. Its totient is φ = 41422752.

The previous prime is 128734579. The next prime is 128734601. The reversal of 128734596 is 695437821.

128734596 is a `hidden beast` number, since 1 + 28 + 7 + 34 + 596 = 666.

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 23 ways as a sum of consecutive naturals, for example, 25905 + ... + 30471.

Almost surely, 2^128734596 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128734596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174588960).

128734596 is an abundant number, since it is smaller than the sum of its proper divisors (220443324).

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

128734596 is a wasteful number, since it uses less digits than its factorization.

128734596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 4601 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 128734596 is about 11346.1269162653. The cubic root of 128734596 is about 504.9306783257.

The spelling of 128734596 in words is "one hundred twenty-eight million, seven hundred thirty-four thousand, five hundred ninety-six".