128579424 has 48 divisors (see below), whose sum is σ = 338208192. Its totient is φ = 42772608.

The previous prime is 128579411. The next prime is 128579443. The reversal of 128579424 is 424975821.

It is a tau number, because it is divible by the number of its divisors (48).

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, 60687 + ... + 62769.

It is an arithmetic number, because the mean of its divisors is an integer number (7046004).

Almost surely, 2^128579424 is an apocalyptic number.

It is an amenable number.

128579424 is an abundant number, since it is smaller than the sum of its proper divisors (209628768).

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

128579424 is a wasteful number, since it uses less digits than its factorization.

128579424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2731 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 128579424 is about 11339.2867500562. The cubic root of 128579424 is about 504.7277217331.

The spelling of 128579424 in words is "one hundred twenty-eight million, five hundred seventy-nine thousand, four hundred twenty-four".