72304040326 has 32 divisors (see below), whose sum is σ = 124560322560. Its totient is φ = 30835091616.

The previous prime is 72304040311. The next prime is 72304040329. The reversal of 72304040326 is 62304040327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72304040329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3238935 + ... + 3261181.

It is an arithmetic number, because the mean of its divisors is an integer number (3892510080).

Almost surely, 2^72304040326 is an apocalyptic number.

72304040326 is a deficient number, since it is larger than the sum of its proper divisors (52256282234).

72304040326 is a wasteful number, since it uses less digits than its factorization.

72304040326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23388.

The product of its (nonzero) digits is 24192, while the sum is 31.

Subtracting from 72304040326 its reverse (62304040327), we obtain a palindrome (9999999999).

The spelling of 72304040326 in words is "seventy-two billion, three hundred four million, forty thousand, three hundred twenty-six".