304422136 has 8 divisors (see below), whose sum is σ = 570791520. Its totient is φ = 152211064.

The previous prime is 304422133. The next prime is 304422143. The reversal of 304422136 is 631224403.

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

It is a self number, because there is not a number n which added to its sum of digits gives 304422136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304422133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19026376 + ... + 19026391.

It is an arithmetic number, because the mean of its divisors is an integer number (71348940).

Almost surely, 2^304422136 is an apocalyptic number.

It is an amenable number.

304422136 is a deficient number, since it is larger than the sum of its proper divisors (266369384).

304422136 is a wasteful number, since it uses less digits than its factorization.

304422136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38052773 (or 38052769 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 304422136 is about 17447.6971546391. The cubic root of 304422136 is about 672.7061678617.

Adding to 304422136 its reverse (631224403), we get a palindrome (935646539).

The spelling of 304422136 in words is "three hundred four million, four hundred twenty-two thousand, one hundred thirty-six".