804605040 has 120 divisors (see below), whose sum is σ = 2708933760. Its totient is φ = 214021632.

The previous prime is 804604993. The next prime is 804605047. The reversal of 804605040 is 40506408.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 804604995 and 804605013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804605047) 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 23 ways as a sum of consecutive naturals, for example, 343714 + ... + 346046.

It is an arithmetic number, because the mean of its divisors is an integer number (22574448).

Almost surely, 2^804605040 is an apocalyptic number.

804605040 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 804605040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354466880).

804605040 is an abundant number, since it is smaller than the sum of its proper divisors (1904328720).

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

804605040 is a wasteful number, since it uses less digits than its factorization.

804605040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 804605040 is about 28365.5608088400. The cubic root of 804605040 is about 930.0955850419.

The spelling of 804605040 in words is "eight hundred four million, six hundred five thousand, forty".