304042330 has 16 divisors (see below), whose sum is σ = 548009064. Its totient is φ = 121454080.

The previous prime is 304042309. The next prime is 304042337. The reversal of 304042330 is 33240403.

It can be written as a sum of positive squares in 4 ways, for example, as 177502329 + 126540001 = 13323^2 + 11249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304042298 and 304042307.

It is not an unprimeable number, because it can be changed into a prime (304042337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12367 + ... + 27586.

Almost surely, 2^304042330 is an apocalyptic number.

304042330 is a deficient number, since it is larger than the sum of its proper divisors (243966734).

304042330 is a wasteful number, since it uses less digits than its factorization.

304042330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40721.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 304042330 is about 17436.8096279107. The cubic root of 304042330 is about 672.4262887752.

Adding to 304042330 its reverse (33240403), we get a palindrome (337282733).

The spelling of 304042330 in words is "three hundred four million, forty-two thousand, three hundred thirty".