18126236 has 6 divisors (see below), whose sum is σ = 31720920. Its totient is φ = 9063116.

The previous prime is 18126221. The next prime is 18126271. The reversal of 18126236 is 63262181.

It is a junction number, because it is equal to n+sod(n) for n = 18126199 and 18126208.

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, 2265776 + ... + 2265783.

It is an arithmetic number, because the mean of its divisors is an integer number (5286820).

Almost surely, 2^18126236 is an apocalyptic number.

It is an amenable number.

18126236 is a deficient number, since it is larger than the sum of its proper divisors (13594684).

18126236 is a wasteful number, since it uses less digits than its factorization.

18126236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531563 (or 4531561 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 18126236 is about 4257.4917498452. The cubic root of 18126236 is about 262.6853644633.

The spelling of 18126236 in words is "eighteen million, one hundred twenty-six thousand, two hundred thirty-six".