16224916 has 6 divisors (see below), whose sum is σ = 28393610. Its totient is φ = 8112456.

The previous prime is 16224893. The next prime is 16224947. The reversal of 16224916 is 61942261.

It can be written as a sum of positive squares in only one way, i.e., 16160400 + 64516 = 4020^2 + 254^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028111 + ... + 2028118.

Almost surely, 2^16224916 is an apocalyptic number.

It is an amenable number.

16224916 is a deficient number, since it is larger than the sum of its proper divisors (12168694).

16224916 is a wasteful number, since it uses less digits than its factorization.

16224916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056233 (or 4056231 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 16224916 is about 4028.0163852696. The cubic root of 16224916 is about 253.1594551685.

The spelling of 16224916 in words is "sixteen million, two hundred twenty-four thousand, nine hundred sixteen".