804161440 has 48 divisors (see below), whose sum is σ = 1902368160. Its totient is φ = 321235200.

The previous prime is 804161437. The next prime is 804161459. The reversal of 804161440 is 44161408.

It is a junction number, because it is equal to n+sod(n) for n = 804161399 and 804161408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 134515 + ... + 140365.

It is an arithmetic number, because the mean of its divisors is an integer number (39632670).

Almost surely, 2^804161440 is an apocalyptic number.

804161440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804161440 is an abundant number, since it is smaller than the sum of its proper divisors (1098206720).

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

804161440 is a wasteful number, since it uses less digits than its factorization.

804161440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725 (or 6717 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 804161440 is about 28357.7403895303. The cubic root of 804161440 is about 929.9246248697.

The spelling of 804161440 in words is "eight hundred four million, one hundred sixty-one thousand, four hundred forty".