305133222 has 32 divisors (see below), whose sum is σ = 617706720. Its totient is φ = 100477440.

The previous prime is 305133167. The next prime is 305133251. The reversal of 305133222 is 222331503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284904 + ... + 285972.

It is an arithmetic number, because the mean of its divisors is an integer number (19303335).

Almost surely, 2^305133222 is an apocalyptic number.

305133222 is an abundant number, since it is smaller than the sum of its proper divisors (312573498).

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

305133222 is a wasteful number, since it uses less digits than its factorization.

305133222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 305133222 is about 17468.0629149314. The cubic root of 305133222 is about 673.2295419428.

Adding to 305133222 its reverse (222331503), we get a palindrome (527464725).

The spelling of 305133222 in words is "three hundred five million, one hundred thirty-three thousand, two hundred twenty-two".