16244744 has 24 divisors (see below), whose sum is σ = 31488030. Its totient is φ = 7856640.

The previous prime is 16244737. The next prime is 16244747. The reversal of 16244744 is 44744261.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 3844 = 4030^2 + 62^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16244744.

It is not an unprimeable number, because it can be changed into a prime (16244747) 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 in 5 ways as a sum of consecutive naturals, for example, 6632 + ... + 8744.

Almost surely, 2^16244744 is an apocalyptic number.

It is an amenable number.

16244744 is a deficient number, since it is larger than the sum of its proper divisors (15243286).

16244744 is a wasteful number, since it uses less digits than its factorization.

16244744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2146 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 16244744 is about 4030.4768948600. The cubic root of 16244744 is about 253.2625394675.

It can be divided in two parts, 162 and 44744, that multiplied together give a triangular number (7248528 = T₃₈₀₇).

The spelling of 16244744 in words is "sixteen million, two hundred forty-four thousand, seven hundred forty-four".