73218822 has 8 divisors (see below), whose sum is σ = 146437656. Its totient is φ = 24406272.

The previous prime is 73218791. The next prime is 73218829. The reversal of 73218822 is 22881237.

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

73218822 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73218829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6101563 + ... + 6101574.

It is an arithmetic number, because the mean of its divisors is an integer number (18304707).

Almost surely, 2^73218822 is an apocalyptic number.

73218822 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.

73218822 is a wasteful number, since it uses less digits than its factorization.

73218822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12203142.

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

The square root of 73218822 is about 8556.7997522438. The cubic root of 73218822 is about 418.3510973058.

The spelling of 73218822 in words is "seventy-three million, two hundred eighteen thousand, eight hundred twenty-two".