128273034 has 32 divisors (see below), whose sum is σ = 259539840. Its totient is φ = 42262272.

The previous prime is 128273029. The next prime is 128273059. The reversal of 128273034 is 430372821.

It is a junction number, because it is equal to n+sod(n) for n = 128272992 and 128273010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313422 + ... + 313830.

It is an arithmetic number, because the mean of its divisors is an integer number (8110620).

Almost surely, 2^128273034 is an apocalyptic number.

128273034 is an abundant number, since it is smaller than the sum of its proper divisors (131266806).

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

128273034 is a wasteful number, since it uses less digits than its factorization.

128273034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 128273034 is about 11325.7685831912. The cubic root of 128273034 is about 504.3265001449.

The spelling of 128273034 in words is "one hundred twenty-eight million, two hundred seventy-three thousand, thirty-four".