128344934 has 16 divisors (see below), whose sum is σ = 209353248. Its totient is φ = 58764672.

The previous prime is 128344907. The next prime is 128344949. The reversal of 128344934 is 439443821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49754 + ... + 52269.

It is an arithmetic number, because the mean of its divisors is an integer number (13084578).

Almost surely, 2^128344934 is an apocalyptic number.

128344934 is a deficient number, since it is larger than the sum of its proper divisors (81008314).

128344934 is a wasteful number, since it uses less digits than its factorization.

128344934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102079.

The product of its digits is 82944, while the sum is 38.

The square root of 128344934 is about 11328.9423160329. The cubic root of 128344934 is about 504.4207114308.

The spelling of 128344934 in words is "one hundred twenty-eight million, three hundred forty-four thousand, nine hundred thirty-four".