73381844 has 6 divisors (see below), whose sum is σ = 128418234. Its totient is φ = 36690920.

The previous prime is 73381829. The next prime is 73381873. The reversal of 73381844 is 44818337.

It can be written as a sum of positive squares in only one way, i.e., 72760900 + 620944 = 8530^2 + 788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73381798 and 73381807.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9172727 + ... + 9172734.

It is an arithmetic number, because the mean of its divisors is an integer number (21403039).

Almost surely, 2^73381844 is an apocalyptic number.

It is an amenable number.

73381844 is a deficient number, since it is larger than the sum of its proper divisors (55036390).

73381844 is a wasteful number, since it uses less digits than its factorization.

73381844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18345465 (or 18345463 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 73381844 is about 8566.3203302235. The cubic root of 73381844 is about 418.6613539542.

The spelling of 73381844 in words is "seventy-three million, three hundred eighty-one thousand, eight hundred forty-four".