304225144 has 8 divisors (see below), whose sum is σ = 570422160. Its totient is φ = 152112568.

The previous prime is 304225133. The next prime is 304225147. The reversal of 304225144 is 441522403.

It is a happy number.

304225144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304225147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19014064 + ... + 19014079.

It is an arithmetic number, because the mean of its divisors is an integer number (71302770).

Almost surely, 2^304225144 is an apocalyptic number.

It is an amenable number.

304225144 is a deficient number, since it is larger than the sum of its proper divisors (266197016).

304225144 is a wasteful number, since it uses less digits than its factorization.

304225144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38028149 (or 38028145 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 304225144 is about 17442.0510261838. The cubic root of 304225144 is about 672.5610335102.

Adding to 304225144 its reverse (441522403), we get a palindrome (745747547).

The spelling of 304225144 in words is "three hundred four million, two hundred twenty-five thousand, one hundred forty-four".