16243144 has 8 divisors (see below), whose sum is σ = 30455910. Its totient is φ = 8121568.

The previous prime is 16243133. The next prime is 16243147. The reversal of 16243144 is 44134261.

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 1512900 = 3838^2 + 1230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (16243147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015189 + ... + 1015204.

Almost surely, 2^16243144 is an apocalyptic number.

It is an amenable number.

16243144 is a deficient number, since it is larger than the sum of its proper divisors (14212766).

16243144 is a wasteful number, since it uses less digits than its factorization.

16243144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030399 (or 2030395 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 16243144 is about 4030.2784022943. The cubic root of 16243144 is about 253.2542242987.

The spelling of 16243144 in words is "sixteen million, two hundred forty-three thousand, one hundred forty-four".