128071926 has 12 divisors (see below), whose sum is σ = 277489212. Its totient is φ = 42690636.

The previous prime is 128071921. The next prime is 128071927. The reversal of 128071926 is 629170821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128071921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3557536 + ... + 3557571.

It is an arithmetic number, because the mean of its divisors is an integer number (23124101).

Almost surely, 2^128071926 is an apocalyptic number.

128071926 is an abundant number, since it is smaller than the sum of its proper divisors (149417286).

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

128071926 is a wasteful number, since it uses less digits than its factorization.

128071926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115115 (or 7115112 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 128071926 is about 11316.8867627100. The cubic root of 128071926 is about 504.0627992421.

The spelling of 128071926 in words is "one hundred twenty-eight million, seventy-one thousand, nine hundred twenty-six".