300440010421 has 4 divisors (see below), whose sum is σ = 301133867692. Its totient is φ = 299746153152.

The previous prime is 300440010391. The next prime is 300440010433. The reversal of 300440010421 is 124010044003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147782580625 + 152657429796 = 384425^2 + 390714^2 .

It is a cyclic number.

It is not a de Polignac number, because 300440010421 - 2³⁷ = 163001056949 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 (300440010491) 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, 346927986 + ... + 346928851.

It is an arithmetic number, because the mean of its divisors is an integer number (75283466923).

Almost surely, 2^300440010421 is an apocalyptic number.

It is an amenable number.

300440010421 is a deficient number, since it is larger than the sum of its proper divisors (693857271).

300440010421 is an equidigital number, since it uses as much as digits as its factorization.

300440010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693857270.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 300440010421 its reverse (124010044003), we get a palindrome (424450054424).

The spelling of 300440010421 in words is "three hundred billion, four hundred forty million, ten thousand, four hundred twenty-one".