128573904 has 20 divisors (see below), whose sum is σ = 332149376. Its totient is φ = 42857952.

The previous prime is 128573899. The next prime is 128573947. The reversal of 128573904 is 409375821.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 1339264 + ... + 1339359.

Almost surely, 2^128573904 is an apocalyptic number.

It is an amenable number.

128573904 is an abundant number, since it is smaller than the sum of its proper divisors (203575472).

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

128573904 is a wasteful number, since it uses less digits than its factorization.

128573904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678634 (or 2678628 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 128573904 is about 11339.0433458912. The cubic root of 128573904 is about 504.7204988644.

It can be divided in two parts, 12857 and 3904, that added together give a palindrome (16761).

The spelling of 128573904 in words is "one hundred twenty-eight million, five hundred seventy-three thousand, nine hundred four".