304004420 has 48 divisors (see below), whose sum is σ = 649237680. Its totient is φ = 119556096.

The previous prime is 304004401. The next prime is 304004443. The reversal of 304004420 is 24400403.

It can be written as a sum of positive squares in 8 ways, for example, as 1800964 + 302203456 = 1342^2 + 17384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414374 + ... + 415106.

It is an arithmetic number, because the mean of its divisors is an integer number (13525785).

Almost surely, 2^304004420 is an apocalyptic number.

It is an amenable number.

304004420 is an abundant number, since it is smaller than the sum of its proper divisors (345233260).

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

304004420 is a wasteful number, since it uses less digits than its factorization.

304004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 304004420 is about 17435.7225258949. The cubic root of 304004420 is about 672.3983401009.

Adding to 304004420 its reverse (24400403), we get a palindrome (328404823).

The spelling of 304004420 in words is "three hundred four million, four thousand, four hundred twenty".