305244212 has 24 divisors (see below), whose sum is σ = 657449856. Its totient is φ = 120755808.

The previous prime is 305244209. The next prime is 305244217. The reversal of 305244212 is 212442503.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305244217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418928 + ... + 419655.

It is an arithmetic number, because the mean of its divisors is an integer number (27393744).

Almost surely, 2^305244212 is an apocalyptic number.

It is an amenable number.

305244212 is an abundant number, since it is smaller than the sum of its proper divisors (352205644).

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

305244212 is a wasteful number, since it uses less digits than its factorization.

305244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838607 (or 838605 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 305244212 is about 17471.2395667852. The cubic root of 305244212 is about 673.3111595046.

Adding to 305244212 its reverse (212442503), we get a palindrome (517686715).

The spelling of 305244212 in words is "three hundred five million, two hundred forty-four thousand, two hundred twelve".