128359404 has 108 divisors (see below), whose sum is σ = 346639384. Its totient is φ = 41570496.

The previous prime is 128359391. The next prime is 128359453. The reversal of 128359404 is 404953821.

It is a tau number, because it is divible by the number of its divisors (108).

It is a super-2 number, since 2×128359404² = 32952273190470432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1758312 + ... + 1758384.

Almost surely, 2^128359404 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 128359404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173319692).

128359404 is an abundant number, since it is smaller than the sum of its proper divisors (218279980).

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

128359404 is an frugal number, since it uses more digits than its factorization.

128359404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 128359404 is about 11329.5809278190. The cubic root of 128359404 is about 504.4396673625.

The spelling of 128359404 in words is "one hundred twenty-eight million, three hundred fifty-nine thousand, four hundred four".