73422138 has 8 divisors (see below), whose sum is σ = 146844288. Its totient is φ = 24474044.

The previous prime is 73422121. The next prime is 73422161. The reversal of 73422138 is 83122437.

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

73422138 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

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, 6118506 + ... + 6118517.

It is an arithmetic number, because the mean of its divisors is an integer number (18355536).

Almost surely, 2^73422138 is an apocalyptic number.

73422138 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.

73422138 is a wasteful number, since it uses less digits than its factorization.

73422138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12237028.

The product of its digits is 8064, while the sum is 30.

The square root of 73422138 is about 8568.6718924230. The cubic root of 73422138 is about 418.7379689719.

The spelling of 73422138 in words is "seventy-three million, four hundred twenty-two thousand, one hundred thirty-eight".