18073344 has 72 divisors (see below), whose sum is σ = 48786192. Its totient is φ = 5939200.

The previous prime is 18073343. The next prime is 18073357. The reversal of 18073344 is 44337081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18073343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77452 + ... + 77684.

It is an arithmetic number, because the mean of its divisors is an integer number (677586).

Almost surely, 2^18073344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18073344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393096).

18073344 is an abundant number, since it is smaller than the sum of its proper divisors (30712848).

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

18073344 is a wasteful number, since it uses less digits than its factorization.

18073344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 339 counting only the distinct ones).

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

The square root of 18073344 is about 4251.2755732839. The cubic root of 18073344 is about 262.4296119665.

It can be divided in two parts, 1807 and 3344, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 18073344 in words is "eighteen million, seventy-three thousand, three hundred forty-four".