73312238 has 8 divisors (see below), whose sum is σ = 110224800. Its totient is φ = 36570640.

The previous prime is 73312231. The next prime is 73312243. The reversal of 73312238 is 83221337.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73312238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73312231) 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 3 ways as a sum of consecutive naturals, for example, 41663 + ... + 43386.

It is an arithmetic number, because the mean of its divisors is an integer number (13778100).

Almost surely, 2^73312238 is an apocalyptic number.

73312238 is a deficient number, since it is larger than the sum of its proper divisors (36912562).

73312238 is a wasteful number, since it uses less digits than its factorization.

73312238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85482.

The product of its digits is 6048, while the sum is 29.

The square root of 73312238 is about 8562.2565950805. The cubic root of 73312238 is about 418.5289389978.

Subtracting 73312238 from its reverse (83221337), we obtain a palindrome (9909099).

The spelling of 73312238 in words is "seventy-three million, three hundred twelve thousand, two hundred thirty-eight".