128148426 has 96 divisors (see below), whose sum is σ = 348840000. Its totient is φ = 34673184.

The previous prime is 128148403. The next prime is 128148437. The reversal of 128148426 is 624841821.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49000 + ... + 51548.

It is an arithmetic number, because the mean of its divisors is an integer number (3633750).

Almost surely, 2^128148426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128148426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174420000).

128148426 is an abundant number, since it is smaller than the sum of its proper divisors (220691574).

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

128148426 is a wasteful number, since it uses less digits than its factorization.

128148426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593 (or 2580 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 128148426 is about 11320.2661629486. The cubic root of 128148426 is about 504.1631416308.

The spelling of 128148426 in words is "one hundred twenty-eight million, one hundred forty-eight thousand, four hundred twenty-six".