4393744 has 10 divisors (see below), whose sum is σ = 8512910. Its totient is φ = 2196864.

The previous prime is 4393729. The next prime is 4393751. The reversal of 4393744 is 4473934.

It can be written as a sum of positive squares in only one way, i.e., 3920400 + 473344 = 1980^2 + 688^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 4³ + 3⁹ + 9² + 3¹¹ + 7⁴ + 4³ + 4¹¹ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137289 + ... + 137320.

It is an arithmetic number, because the mean of its divisors is an integer number (851291).

Almost surely, 2^4393744 is an apocalyptic number.

It is an amenable number.

4393744 is a deficient number, since it is larger than the sum of its proper divisors (4119166).

4393744 is a wasteful number, since it uses less digits than its factorization.

4393744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274617 (or 274611 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 4393744 is about 2096.1259504142. The cubic root of 4393744 is about 163.7865555588.

The spelling of 4393744 in words is "four million, three hundred ninety-three thousand, seven hundred forty-four".