72382218 has 8 divisors (see below), whose sum is σ = 144764448. Its totient is φ = 24127404.

The previous prime is 72382217. The next prime is 72382223. The reversal of 72382218 is 81228327.

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

72382218 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72382217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6031846 + ... + 6031857.

It is an arithmetic number, because the mean of its divisors is an integer number (18095556).

Almost surely, 2^72382218 is an apocalyptic number.

72382218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72382218 is a wasteful number, since it uses less digits than its factorization.

72382218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12063708.

The product of its digits is 10752, while the sum is 33.

The square root of 72382218 is about 8507.7739744307. The cubic root of 72382218 is about 416.7516190160.

The spelling of 72382218 in words is "seventy-two million, three hundred eighty-two thousand, two hundred eighteen".