73043744 has 12 divisors (see below), whose sum is σ = 143804934. Its totient is φ = 36521856.

The previous prime is 73043743. The next prime is 73043753. The reversal of 73043744 is 44734037.

It can be written as a sum of positive squares in only one way, i.e., 48163600 + 24880144 = 6940^2 + 4988^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2282617 = 73043744 / (7 + 3 + 0 + 4 + 3 + 7 + 4 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 73043744.

It is not an unprimeable number, because it can be changed into a prime (73043741) by changing a digit.

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 as a sum of consecutive naturals, namely, 1141277 + ... + 1141340.

Almost surely, 2^73043744 is an apocalyptic number.

It is an amenable number.

73043744 is a deficient number, since it is larger than the sum of its proper divisors (70761190).

73043744 is a wasteful number, since it uses less digits than its factorization.

73043744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282627 (or 2282619 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 73043744 is about 8546.5632859062. The cubic root of 73043744 is about 418.0173828840.

The spelling of 73043744 in words is "seventy-three million, forty-three thousand, seven hundred forty-four".