300668221 has 4 divisors (see below), whose sum is σ = 343620832. Its totient is φ = 257715612.

The previous prime is 300668209. The next prime is 300668231. The reversal of 300668221 is 122866003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 300668221 - 2⁹ = 300667709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 300668221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300668231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21476295 + ... + 21476308.

It is an arithmetic number, because the mean of its divisors is an integer number (85905208).

Almost surely, 2^300668221 is an apocalyptic number.

It is an amenable number.

300668221 is a deficient number, since it is larger than the sum of its proper divisors (42952611).

300668221 is an equidigital number, since it uses as much as digits as its factorization.

300668221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42952610.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 300668221 is about 17339.7872247614. The cubic root of 300668221 is about 669.9296139024.

The spelling of 300668221 in words is "three hundred million, six hundred sixty-eight thousand, two hundred twenty-one".