304006420 has 24 divisors (see below), whose sum is σ = 660429000. Its totient is φ = 117409152.

The previous prime is 304006399. The next prime is 304006447. The reversal of 304006420 is 24600403.

It can be written as a sum of positive squares in 4 ways, for example, as 8785296 + 295221124 = 2964^2 + 17182^2 .

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, 261495 + ... + 262654.

It is an arithmetic number, because the mean of its divisors is an integer number (27517875).

Almost surely, 2^304006420 is an apocalyptic number.

It is an amenable number.

304006420 is an abundant number, since it is smaller than the sum of its proper divisors (356422580).

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

304006420 is a wasteful number, since it uses less digits than its factorization.

304006420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524187 (or 524185 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 304006420 is about 17435.7798793171. The cubic root of 304006420 is about 672.3998146340.

Adding to 304006420 its reverse (24600403), we get a palindrome (328606823).

The spelling of 304006420 in words is "three hundred four million, six thousand, four hundred twenty".