804484840 has 32 divisors (see below), whose sum is σ = 1810953000. Its totient is φ = 321640704.

The previous prime is 804484817. The next prime is 804484843. The reversal of 804484840 is 48484408.

It can be written as a sum of positive squares in 4 ways, for example, as 297424516 + 507060324 = 17246^2 + 22518^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 804484793 and 804484802.

It is not an unprimeable number, because it can be changed into a prime (804484843) 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, 121126 + ... + 127594.

Almost surely, 2^804484840 is an apocalyptic number.

It is an amenable number.

804484840 is an abundant number, since it is smaller than the sum of its proper divisors (1006468160).

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

804484840 is a wasteful number, since it uses less digits than its factorization.

804484840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9589 (or 9585 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 804484840 is about 28363.4419632033. The cubic root of 804484840 is about 930.0492670551.

The spelling of 804484840 in words is "eight hundred four million, four hundred eighty-four thousand, eight hundred forty".