18224996 has 6 divisors (see below), whose sum is σ = 31893750. Its totient is φ = 9112496.

The previous prime is 18224959. The next prime is 18225013. The reversal of 18224996 is 69942281.

It can be written as a sum of positive squares in only one way, i.e., 11464996 + 6760000 = 3386^2 + 2600^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2278121 + ... + 2278128.

It is an arithmetic number, because the mean of its divisors is an integer number (5315625).

Almost surely, 2^18224996 is an apocalyptic number.

It is an amenable number.

18224996 is a deficient number, since it is larger than the sum of its proper divisors (13668754).

18224996 is a wasteful number, since it uses less digits than its factorization.

18224996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556253 (or 4556251 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 18224996 is about 4269.0743727417. The cubic root of 18224996 is about 263.1615771864.

The spelling of 18224996 in words is "eighteen million, two hundred twenty-four thousand, nine hundred ninety-six".