128104448 has 48 divisors (see below), whose sum is σ = 260048880. Its totient is φ = 63078400.

The previous prime is 128104447. The next prime is 128104451. The reversal of 128104448 is 844401821.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128104447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144968 + ... + 145848.

It is an arithmetic number, because the mean of its divisors is an integer number (5417685).

Almost surely, 2^128104448 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 128104448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130024440).

128104448 is an abundant number, since it is smaller than the sum of its proper divisors (131944432).

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

128104448 is an frugal number, since it uses more digits than its factorization.

128104448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 128104448 is about 11318.3235507738. The cubic root of 128104448 is about 504.1054620995.

The spelling of 128104448 in words is "one hundred twenty-eight million, one hundred four thousand, four hundred forty-eight".