300042993 has 4 divisors (see below), whose sum is σ = 400057328. Its totient is φ = 200028660.

The previous prime is 300042959. The next prime is 300042997. The reversal of 300042993 is 399240003.

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 300042993 - 2²² = 295848689 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 300042993.

It is not an unprimeable number, because it can be changed into a prime (300042997) 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, 50007163 + ... + 50007168.

It is an arithmetic number, because the mean of its divisors is an integer number (100014332).

Almost surely, 2^300042993 is an apocalyptic number.

It is an amenable number.

300042993 is a deficient number, since it is larger than the sum of its proper divisors (100014335).

300042993 is a wasteful number, since it uses less digits than its factorization.

300042993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100014334.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 300042993 is about 17321.7491322326. The cubic root of 300042993 is about 669.4649273667.

Adding to 300042993 its reverse (399240003), we get a palindrome (699282996).

The spelling of 300042993 in words is "three hundred million, forty-two thousand, nine hundred ninety-three".