8404928 has 56 divisors (see below), whose sum is σ = 19397472. Its totient is φ = 3538944.

The previous prime is 8404927. The next prime is 8404939. The reversal of 8404928 is 8294048.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32576 + ... + 32832.

Almost surely, 2^8404928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8404928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9698736).

8404928 is an abundant number, since it is smaller than the sum of its proper divisors (10992544).

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

8404928 is a wasteful number, since it uses less digits than its factorization.

8404928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 8404928 is about 2899.1253853533. The cubic root of 8404928 is about 203.3190159825.

The spelling of 8404928 in words is "eight million, four hundred four thousand, nine hundred twenty-eight".