18323608 has 16 divisors (see below), whose sum is σ = 35088480. Its totient is φ = 8966688.

The previous prime is 18323593. The next prime is 18323611. The reversal of 18323608 is 80632381.

It is a super-2 number, since 2×18323608² = 671509220275328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18323608.

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 in 3 ways as a sum of consecutive naturals, for example, 23991 + ... + 24742.

It is an arithmetic number, because the mean of its divisors is an integer number (2193030).

Almost surely, 2^18323608 is an apocalyptic number.

It is an amenable number.

18323608 is a deficient number, since it is larger than the sum of its proper divisors (16764872).

18323608 is a wasteful number, since it uses less digits than its factorization.

18323608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48786 (or 48782 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 18323608 is about 4280.6083679776. The cubic root of 18323608 is about 263.6353628327.

Adding to 18323608 its reverse (80632381), we get a palindrome (98955989).

The spelling of 18323608 in words is "eighteen million, three hundred twenty-three thousand, six hundred eight".