72243303 has 16 divisors (see below), whose sum is σ = 105563136. Its totient is φ = 43583040.

The previous prime is 72243289. The next prime is 72243307. The reversal of 72243303 is 30334227.

It is a happy number.

It is not a de Polignac number, because 72243303 - 2⁴ = 72243287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72243307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2451 + ... + 12267.

It is an arithmetic number, because the mean of its divisors is an integer number (6597696).

Almost surely, 2^72243303 is an apocalyptic number.

72243303 is a deficient number, since it is larger than the sum of its proper divisors (33319833).

72243303 is a wasteful number, since it uses less digits than its factorization.

72243303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10054.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 72243303 is about 8499.6060496943. The cubic root of 72243303 is about 416.4848402032.

The spelling of 72243303 in words is "seventy-two million, two hundred forty-three thousand, three hundred three".