72304040302 has 12 divisors (see below), whose sum is σ = 117440586720. Its totient is φ = 33371095368.

The previous prime is 72304040299. The next prime is 72304040311. The reversal of 72304040302 is 20304040327.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106958302 + ... + 106958977.

It is an arithmetic number, because the mean of its divisors is an integer number (9786715560).

Almost surely, 2^72304040302 is an apocalyptic number.

72304040302 is a deficient number, since it is larger than the sum of its proper divisors (45136546418).

72304040302 is a wasteful number, since it uses less digits than its factorization.

72304040302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213917307 (or 213917294 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

Adding to 72304040302 its sum of digits (25), we get a palindrome (72304040327).

Adding to 72304040302 its reverse (20304040327), we get a palindrome (92608080629).

The spelling of 72304040302 in words is "seventy-two billion, three hundred four million, forty thousand, three hundred two".