72303243 has 8 divisors (see below), whose sum is σ = 96544656. Its totient is φ = 48132000.

The previous prime is 72303229. The next prime is 72303247. The reversal of 72303243 is 34230327.

It is a happy number.

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

It is not a de Polignac number, because 72303243 - 2⁵ = 72303211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72303247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15088 + ... + 19293.

It is an arithmetic number, because the mean of its divisors is an integer number (12068082).

Almost surely, 2^72303243 is an apocalyptic number.

72303243 is a deficient number, since it is larger than the sum of its proper divisors (24241413).

72303243 is a wasteful number, since it uses less digits than its factorization.

72303243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35085.

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

The square root of 72303243 is about 8503.1313643857. The cubic root of 72303243 is about 416.5999936697.

It can be divided in two parts, 7230324 and 3, that added together give a palindrome (7230327).

The spelling of 72303243 in words is "seventy-two million, three hundred three thousand, two hundred forty-three".