128830892 has 12 divisors (see below), whose sum is σ = 231547680. Its totient is φ = 62674416.

The previous prime is 128830873. The next prime is 128830927. The reversal of 128830892 is 298038821.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 435092 + ... + 435387.

It is an arithmetic number, because the mean of its divisors is an integer number (19295640).

Almost surely, 2^128830892 is an apocalyptic number.

It is an amenable number.

128830892 is a deficient number, since it is larger than the sum of its proper divisors (102716788).

128830892 is a wasteful number, since it uses less digits than its factorization.

128830892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870520 (or 870518 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 128830892 is about 11350.3696856094. The cubic root of 128830892 is about 505.0565462937.

The spelling of 128830892 in words is "one hundred twenty-eight million, eight hundred thirty thousand, eight hundred ninety-two".