304216444 has 48 divisors (see below), whose sum is σ = 621351360. Its totient is φ = 127641600.

The previous prime is 304216421. The next prime is 304216447. The reversal of 304216444 is 444612403.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304216447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273762 + ... + 274870.

It is an arithmetic number, because the mean of its divisors is an integer number (12944820).

Almost surely, 2^304216444 is an apocalyptic number.

It is an amenable number.

304216444 is an abundant number, since it is smaller than the sum of its proper divisors (317134916).

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

304216444 is a wasteful number, since it uses less digits than its factorization.

304216444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 304216444 is about 17441.8016271256. The cubic root of 304216444 is about 672.5546223190.

Adding to 304216444 its reverse (444612403), we get a palindrome (748828847).

The spelling of 304216444 in words is "three hundred four million, two hundred sixteen thousand, four hundred forty-four".