305222504 has 16 divisors (see below), whose sum is σ = 579537600. Its totient is φ = 150679152.

The previous prime is 305222503. The next prime is 305222507. The reversal of 305222504 is 405222503.

305222504 is nontrivially palindromic in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 305222504.

It is not an unprimeable number, because it can be changed into a prime (305222501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240842 + ... + 242105.

It is an arithmetic number, because the mean of its divisors is an integer number (36221100).

Almost surely, 2^305222504 is an apocalyptic number.

It is an amenable number.

305222504 is a deficient number, since it is larger than the sum of its proper divisors (274315096).

305222504 is a wasteful number, since it uses less digits than its factorization.

305222504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483032 (or 483028 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 305222504 is about 17470.6183061734. The cubic root of 305222504 is about 673.2951978750.

Subtracting 305222504 from its reverse (405222503), we obtain a palindrome (99999999).

The spelling of 305222504 in words is "three hundred five million, two hundred twenty-two thousand, five hundred four".