304375040 has 72 divisors (see below), whose sum is σ = 732124008. Its totient is φ = 121241600.

The previous prime is 304374977. The next prime is 304375063. The reversal of 304375040 is 40573403.

It can be written as a sum of positive squares in 4 ways, for example, as 133079296 + 171295744 = 11536^2 + 13088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512984 + ... + 513576.

It is an arithmetic number, because the mean of its divisors is an integer number (10168389).

Almost surely, 2^304375040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304375040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366062004).

304375040 is an abundant number, since it is smaller than the sum of its proper divisors (427748968).

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

304375040 is an equidigital number, since it uses as much as digits as its factorization.

304375040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 304375040 is about 17446.3474687397. The cubic root of 304375040 is about 672.6714754616.

The spelling of 304375040 in words is "three hundred four million, three hundred seventy-five thousand, forty".