128901404 has 12 divisors (see below), whose sum is σ = 233356200. Its totient is φ = 62228208.

The previous prime is 128901397. The next prime is 128901413. The reversal of 128901404 is 404109821.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555494 + ... + 555725.

It is an arithmetic number, because the mean of its divisors is an integer number (19446350).

Almost surely, 2^128901404 is an apocalyptic number.

It is an amenable number.

128901404 is a deficient number, since it is larger than the sum of its proper divisors (104454796).

128901404 is a wasteful number, since it uses less digits than its factorization.

128901404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111252 (or 1111250 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 128901404 is about 11353.4754150436. The cubic root of 128901404 is about 505.1486723654.

The spelling of 128901404 in words is "one hundred twenty-eight million, nine hundred one thousand, four hundred four".