128850048 has 128 divisors (see below), whose sum is σ = 397065600. Its totient is φ = 41057280.

The previous prime is 128850031. The next prime is 128850053. The reversal of 128850048 is 840058821.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a junction number, because it is equal to n+sod(n) for n = 128849994 and 128850021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78678 + ... + 80298.

It is an arithmetic number, because the mean of its divisors is an integer number (3102075).

Almost surely, 2^128850048 is an apocalyptic number.

128850048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128850048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198532800).

128850048 is an abundant number, since it is smaller than the sum of its proper divisors (268215552).

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

128850048 is a wasteful number, since it uses less digits than its factorization.

128850048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 128850048 is about 11351.2135034101. The cubic root of 128850048 is about 505.0815775150.

The spelling of 128850048 in words is "one hundred twenty-eight million, eight hundred fifty thousand, forty-eight".