300240421 has 4 divisors (see below), whose sum is σ = 323335852. Its totient is φ = 277144992.

The previous prime is 300240419. The next prime is 300240431. The reversal of 300240421 is 124042003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124042003 = 877 ⋅141439.

It can be written as a sum of positive squares in 2 ways, for example, as 143640225 + 156600196 = 11985^2 + 12514^2 .

It is a cyclic number.

It is not a de Polignac number, because 300240421 - 2¹ = 300240419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300240395 and 300240404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300240401) 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, 11547696 + ... + 11547721.

It is an arithmetic number, because the mean of its divisors is an integer number (80833963).

Almost surely, 2^300240421 is an apocalyptic number.

It is an amenable number.

300240421 is a deficient number, since it is larger than the sum of its proper divisors (23095431).

300240421 is a wasteful number, since it uses less digits than its factorization.

300240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23095430.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 300240421 is about 17327.4470421929. The cubic root of 300240421 is about 669.6117309314.

Adding to 300240421 its reverse (124042003), we get a palindrome (424282424).

The spelling of 300240421 in words is "three hundred million, two hundred forty thousand, four hundred twenty-one".