305032222 has 8 divisors (see below), whose sum is σ = 499143672. Its totient is φ = 138651000.

The previous prime is 305032199. The next prime is 305032243. The reversal of 305032222 is 222230503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 305032222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6932529 + ... + 6932572.

It is an arithmetic number, because the mean of its divisors is an integer number (62392959).

Almost surely, 2^305032222 is an apocalyptic number.

305032222 is a deficient number, since it is larger than the sum of its proper divisors (194111450).

305032222 is a wasteful number, since it uses less digits than its factorization.

305032222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13865114.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 305032222 is about 17465.1716853857. The cubic root of 305032222 is about 673.1552534216.

Adding to 305032222 its reverse (222230503), we get a palindrome (527262725).

The spelling of 305032222 in words is "three hundred five million, thirty-two thousand, two hundred twenty-two".