809304948 has 18 divisors (see below), whose sum is σ = 2045743154. Its totient is φ = 269768304.

The previous prime is 809304917. The next prime is 809304961. The reversal of 809304948 is 849403908.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 799645284 + 9659664 = 28278^2 + 3108^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11240311 + ... + 11240382.

Almost surely, 2^809304948 is an apocalyptic number.

It is an amenable number.

809304948 is an abundant number, since it is smaller than the sum of its proper divisors (1236438206).

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

809304948 is a wasteful number, since it uses less digits than its factorization.

809304948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22480703 (or 22480698 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 809304948 is about 28448.2855019419. The cubic root of 809304948 is about 931.9030473174.

The spelling of 809304948 in words is "eight hundred nine million, three hundred four thousand, nine hundred forty-eight".