72368438 has 16 divisors (see below), whose sum is σ = 111464640. Its totient is φ = 35222016.

The previous prime is 72368437. The next prime is 72368467. The reversal of 72368438 is 83486327.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72368395 and 72368404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72368437) 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, 16148 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (6966540).

Almost surely, 2^72368438 is an apocalyptic number.

72368438 is a deficient number, since it is larger than the sum of its proper divisors (39096202).

72368438 is a wasteful number, since it uses less digits than its factorization.

72368438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231.

The product of its digits is 193536, while the sum is 41.

The square root of 72368438 is about 8506.9640883220. The cubic root of 72368438 is about 416.7251705229.

The spelling of 72368438 in words is "seventy-two million, three hundred sixty-eight thousand, four hundred thirty-eight".