804949020 has 36 divisors (see below), whose sum is σ = 2441679240. Its totient is φ = 214653024.

The previous prime is 804948983. The next prime is 804949049. The reversal of 804949020 is 20949408.

It is a happy number.

804949020 is a `hidden beast` number, since 80 + 494 + 90 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 2235790 + ... + 2236149.

Almost surely, 2^804949020 is an apocalyptic number.

It is an amenable number.

804949020 is an abundant number, since it is smaller than the sum of its proper divisors (1636730220).

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

804949020 is a wasteful number, since it uses less digits than its factorization.

804949020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471954 (or 4471949 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 804949020 is about 28371.6234995462. The cubic root of 804949020 is about 930.2281091509.

The spelling of 804949020 in words is "eight hundred four million, nine hundred forty-nine thousand, twenty".