128475446 has 16 divisors (see below), whose sum is σ = 210409920. Its totient is φ = 58348680.

The previous prime is 128475421. The next prime is 128475527. The reversal of 128475446 is 644574821.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 42245 + ... + 45183.

It is an arithmetic number, because the mean of its divisors is an integer number (13150620).

Almost surely, 2^128475446 is an apocalyptic number.

128475446 is a deficient number, since it is larger than the sum of its proper divisors (81934474).

128475446 is a wasteful number, since it uses less digits than its factorization.

128475446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939.

The product of its digits is 215040, while the sum is 41.

The square root of 128475446 is about 11334.7009665011. The cubic root of 128475446 is about 504.5916327431.

It can be divided in two parts, 128 and 475446, that added together give a palindrome (475574).

The spelling of 128475446 in words is "one hundred twenty-eight million, four hundred seventy-five thousand, four hundred forty-six".