18124468 has 6 divisors (see below), whose sum is σ = 31717826. Its totient is φ = 9062232.

The previous prime is 18124453. The next prime is 18124489. The reversal of 18124468 is 86442181.

It can be written as a sum of positive squares in only one way, i.e., 17623204 + 501264 = 4198^2 + 708^2 .

It is a congruent number.

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, 2265555 + ... + 2265562.

Almost surely, 2^18124468 is an apocalyptic number.

It is an amenable number.

18124468 is a deficient number, since it is larger than the sum of its proper divisors (13593358).

18124468 is a wasteful number, since it uses less digits than its factorization.

18124468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531121 (or 4531119 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 18124468 is about 4257.2841107918. The cubic root of 18124468 is about 262.6768235685.

It can be divided in two parts, 181 and 24468, that added together give a square (24649 = 157²).

The spelling of 18124468 in words is "eighteen million, one hundred twenty-four thousand, four hundred sixty-eight".