305224213 has 12 divisors (see below), whose sum is σ = 357556960. Its totient is φ = 255229920.

The previous prime is 305224207. The next prime is 305224223. The reversal of 305224213 is 312422503.

It is not a de Polignac number, because 305224213 - 2⁵ = 305224181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305224223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1203 + ... + 24736.

Almost surely, 2^305224213 is an apocalyptic number.

It is an amenable number.

305224213 is a deficient number, since it is larger than the sum of its proper divisors (52332747).

305224213 is an equidigital number, since it uses as much as digits as its factorization.

305224213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26028 (or 25987 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 305224213 is about 17470.6672167951. The cubic root of 305224213 is about 673.2964545095.

Adding to 305224213 its reverse (312422503), we get a palindrome (617646716).

The spelling of 305224213 in words is "three hundred five million, two hundred twenty-four thousand, two hundred thirteen".