16224164 has 18 divisors (see below), whose sum is σ = 31208982. Its totient is φ = 7374400.

The previous prime is 16224161. The next prime is 16224179. The reversal of 16224164 is 46142261.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 3833764 = 3520^2 + 1958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16224161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16277 + ... + 17244.

Almost surely, 2^16224164 is an apocalyptic number.

It is an amenable number.

16224164 is a deficient number, since it is larger than the sum of its proper divisors (14984818).

16224164 is a wasteful number, since it uses less digits than its factorization.

16224164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33547 (or 33534 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 16224164 is about 4027.9230379937. The cubic root of 16224164 is about 253.1555439238.

The spelling of 16224164 in words is "sixteen million, two hundred twenty-four thousand, one hundred sixty-four".