72318396 has 24 divisors (see below), whose sum is σ = 169223040. Its totient is φ = 24037552.

The previous prime is 72318377. The next prime is 72318397. The reversal of 72318396 is 69381327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72318397) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4086 + ... + 12701.

It is an arithmetic number, because the mean of its divisors is an integer number (7050960).

Almost surely, 2^72318396 is an apocalyptic number.

It is an amenable number.

72318396 is an abundant number, since it is smaller than the sum of its proper divisors (96904644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72318396 is a wasteful number, since it uses less digits than its factorization.

72318396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17153 (or 17151 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 72318396 is about 8504.0223423977. The cubic root of 72318396 is about 416.6290947099.

The spelling of 72318396 in words is "seventy-two million, three hundred eighteen thousand, three hundred ninety-six".