304505212 has 18 divisors (see below), whose sum is σ = 585733064. Its totient is φ = 138411240.

The previous prime is 304505197. The next prime is 304505221. The reversal of 304505212 is 212505403.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 314088 + ... + 315055.

Almost surely, 2^304505212 is an apocalyptic number.

It is an amenable number.

304505212 is a deficient number, since it is larger than the sum of its proper divisors (281227852).

304505212 is a wasteful number, since it uses less digits than its factorization.

304505212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629169 (or 629156 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 304505212 is about 17450.0777075634. The cubic root of 304505212 is about 672.7673555438.

The spelling of 304505212 in words is "three hundred four million, five hundred five thousand, two hundred twelve".