72443318 has 8 divisors (see below), whose sum is σ = 108702048. Its totient is φ = 36209304.

The previous prime is 72443303. The next prime is 72443321. The reversal of 72443318 is 81334427.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5780 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (13587756).

Almost surely, 2^72443318 is an apocalyptic number.

72443318 is a deficient number, since it is larger than the sum of its proper divisors (36258730).

72443318 is a wasteful number, since it uses less digits than its factorization.

72443318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358.

The product of its digits is 16128, while the sum is 32.

The square root of 72443318 is about 8511.3640504916. The cubic root of 72443318 is about 416.8688502143.

The spelling of 72443318 in words is "seventy-two million, four hundred forty-three thousand, three hundred eighteen".