804826840 has 32 divisors (see below), whose sum is σ = 1811814480. Its totient is φ = 321761152.

The previous prime is 804826777. The next prime is 804826853. The reversal of 804826840 is 48628408.

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 = 804826793 and 804826802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95019 + ... + 103141.

Almost surely, 2^804826840 is an apocalyptic number.

It is an amenable number.

804826840 is an abundant number, since it is smaller than the sum of its proper divisors (1006987640).

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

804826840 is a wasteful number, since it uses less digits than its factorization.

804826840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10611 (or 10607 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 804826840 is about 28369.4702100691. The cubic root of 804826840 is about 930.1810415651.

The spelling of 804826840 in words is "eight hundred four million, eight hundred twenty-six thousand, eight hundred forty".