904494688 has 96 divisors (see below), whose sum is σ = 1985679360. Its totient is φ = 403898880.

The previous prime is 904494683. The next prime is 904494691. The reversal of 904494688 is 886494409.

It is a super-2 number, since 2×904494688² = 1636221281240434688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904494683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660981 + ... + 662347.

It is an arithmetic number, because the mean of its divisors is an integer number (20684160).

Almost surely, 2^904494688 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 904494688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992839680).

904494688 is an abundant number, since it is smaller than the sum of its proper divisors (1081184672).

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

904494688 is a wasteful number, since it uses less digits than its factorization.

904494688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 904494688 is about 30074.8181706889. The cubic root of 904494688 is about 967.0939658808.

The spelling of 904494688 in words is "nine hundred four million, four hundred ninety-four thousand, six hundred eighty-eight".