804147540 has 48 divisors (see below), whose sum is σ = 2573273472. Its totient is φ = 183805056.

The previous prime is 804147523. The next prime is 804147559. The reversal of 804147540 is 45741408.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 956899 + ... + 957738.

It is an arithmetic number, because the mean of its divisors is an integer number (53609864).

Almost surely, 2^804147540 is an apocalyptic number.

It is an amenable number.

804147540 is an abundant number, since it is smaller than the sum of its proper divisors (1769125932).

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

804147540 is a wasteful number, since it uses less digits than its factorization.

804147540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914656 (or 1914654 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 804147540 is about 28357.4953054744. The cubic root of 804147540 is about 929.9192668963.

Adding to 804147540 its reverse (45741408), we get a palindrome (849888948).

The spelling of 804147540 in words is "eight hundred four million, one hundred forty-seven thousand, five hundred forty".