128904046 has 8 divisors (see below), whose sum is σ = 193415040. Its totient is φ = 64432368.

The previous prime is 128904031. The next prime is 128904049. The reversal of 128904046 is 640409821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128904049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (24176880).

Almost surely, 2^128904046 is an apocalyptic number.

128904046 is a deficient number, since it is larger than the sum of its proper divisors (64510994).

128904046 is a wasteful number, since it uses less digits than its factorization.

128904046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19658.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 128904046 is about 11353.5917664852. The cubic root of 128904046 is about 505.1521235656.

The spelling of 128904046 in words is "one hundred twenty-eight million, nine hundred four thousand, forty-six".