18343996 has 24 divisors (see below), whose sum is σ = 35449344. Its totient is φ = 8236080.

The previous prime is 18343943. The next prime is 18344017. The reversal of 18343996 is 69934381.

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 in 7 ways as a sum of consecutive naturals, for example, 1141 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (1477056).

Almost surely, 2^18343996 is an apocalyptic number.

It is an amenable number.

18343996 is a deficient number, since it is larger than the sum of its proper divisors (17105348).

18343996 is a wasteful number, since it uses less digits than its factorization.

18343996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5119 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The square root of 18343996 is about 4282.9891431102. The cubic root of 18343996 is about 263.7331056915.

The spelling of 18343996 in words is "eighteen million, three hundred forty-three thousand, nine hundred ninety-six".