804189408 has 48 divisors (see below), whose sum is σ = 2302909056. Its totient is φ = 243693440.

The previous prime is 804189391. The next prime is 804189439. The reversal of 804189408 is 804981408.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 804189408.

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, 379716 + ... + 381827.

It is an arithmetic number, because the mean of its divisors is an integer number (47977272).

Almost surely, 2^804189408 is an apocalyptic number.

804189408 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

804189408 is an abundant number, since it is smaller than the sum of its proper divisors (1498719648).

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

804189408 is a wasteful number, since it uses less digits than its factorization.

804189408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761567 (or 761559 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 804189408 is about 28358.2335133908. The cubic root of 804189408 is about 929.9354053876.

The spelling of 804189408 in words is "eight hundred four million, one hundred eighty-nine thousand, four hundred eight".