804491520 has 216 divisors, whose sum is σ = 2953465536. Its totient is φ = 182820864.

The previous prime is 804491473. The next prime is 804491543. The reversal of 804491520 is 25194408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4650154 + ... + 4650326.

Almost surely, 2^804491520 is an apocalyptic number.

804491520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804491520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1476732768).

804491520 is an abundant number, since it is smaller than the sum of its proper divisors (2148974016).

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

804491520 is an equidigital number, since it uses as much as digits as its factorization.

804491520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 804491520 is about 28363.5597201762. The cubic root of 804491520 is about 930.0518412540.

The spelling of 804491520 in words is "eight hundred four million, four hundred ninety-one thousand, five hundred twenty".