304585040 has 20 divisors (see below), whose sum is σ = 708160404. Its totient is φ = 121833984.

The previous prime is 304585037. The next prime is 304585063. The reversal of 304585040 is 40585403.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 227285776 = 8792^2 + 15076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 304584994 and 304585012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903577 + ... + 1903736.

Almost surely, 2^304585040 is an apocalyptic number.

It is an amenable number.

304585040 is an abundant number, since it is smaller than the sum of its proper divisors (403575364).

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

304585040 is a wasteful number, since it uses less digits than its factorization.

304585040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807326 (or 3807320 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 304585040 is about 17452.3648827315. The cubic root of 304585040 is about 672.8261405038.

The spelling of 304585040 in words is "three hundred four million, five hundred eighty-five thousand, forty".