305244213 has 8 divisors (see below), whose sum is σ = 408739968. Its totient is φ = 202622304.

The previous prime is 305244209. The next prime is 305244217. The reversal of 305244213 is 312442503.

It is an interprime number because it is at equal distance from previous prime (305244209) and next prime (305244217).

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

It is not a de Polignac number, because 305244213 - 2² = 305244209 is a prime.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217645 + ... + 219042.

It is an arithmetic number, because the mean of its divisors is an integer number (51092496).

Almost surely, 2^305244213 is an apocalyptic number.

It is an amenable number.

305244213 is a deficient number, since it is larger than the sum of its proper divisors (103495755).

305244213 is a wasteful number, since it uses less digits than its factorization.

305244213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436923.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 305244213 is about 17471.2395954036. The cubic root of 305244213 is about 673.3111602399.

Adding to 305244213 its reverse (312442503), we get a palindrome (617686716).

The spelling of 305244213 in words is "three hundred five million, two hundred forty-four thousand, two hundred thirteen".