303040243 has 8 divisors (see below), whose sum is σ = 330785136. Its totient is φ = 275328000.

The previous prime is 303040229. The next prime is 303040247. The reversal of 303040243 is 342040303.

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

It is a cyclic number.

It is not a de Polignac number, because 303040243 - 2⁵ = 303040211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 303040243.

It is not an unprimeable number, because it can be changed into a prime (303040247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13843 + ... + 28243.

It is an arithmetic number, because the mean of its divisors is an integer number (41348142).

Almost surely, 2^303040243 is an apocalyptic number.

303040243 is a deficient number, since it is larger than the sum of its proper divisors (27744893).

303040243 is a wasteful number, since it uses less digits than its factorization.

303040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16325.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 303040243 is about 17408.0510971217. The cubic root of 303040243 is about 671.6867302537.

Adding to 303040243 its reverse (342040303), we get a palindrome (645080546).

The spelling of 303040243 in words is "three hundred three million, forty thousand, two hundred forty-three".