128194048 has 80 divisors (see below), whose sum is σ = 269630064. Its totient is φ = 60825600.

The previous prime is 128193953. The next prime is 128194049. The reversal of 128194048 is 840491821.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 128193998 and 128194016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128194049) 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, 1269198 + ... + 1269298.

Almost surely, 2^128194048 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 128194048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134815032).

128194048 is an abundant number, since it is smaller than the sum of its proper divisors (141436016).

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

128194048 is an equidigital number, since it uses as much as digits as its factorization.

128194048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 128194048 is about 11322.2810422635. The cubic root of 128194048 is about 504.2229634135. Note that the first 3 decimals are identical.

The spelling of 128194048 in words is "one hundred twenty-eight million, one hundred ninety-four thousand, forty-eight".