128943078 has 32 divisors (see below), whose sum is σ = 282120192. Its totient is φ = 38964000.

The previous prime is 128943071. The next prime is 128943091. The reversal of 128943078 is 870349821.

It is a super-2 number, since 2×128943078² = 33252634728228168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128943071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22728 + ... + 27828.

It is an arithmetic number, because the mean of its divisors is an integer number (8816256).

Almost surely, 2^128943078 is an apocalyptic number.

128943078 is an abundant number, since it is smaller than the sum of its proper divisors (153177114).

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

128943078 is a wasteful number, since it uses less digits than its factorization.

128943078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 128943078 is about 11355.3105637847. The cubic root of 128943078 is about 505.2031049184.

The spelling of 128943078 in words is "one hundred twenty-eight million, nine hundred forty-three thousand, seventy-eight".