18126456 has 64 divisors (see below), whose sum is σ = 48230400. Its totient is φ = 5660928.

The previous prime is 18126439. The next prime is 18126481. The reversal of 18126456 is 65462181.

It is a plaindrome in base 14.

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 15 ways as a sum of consecutive naturals, for example, 57756 + ... + 58068.

It is an arithmetic number, because the mean of its divisors is an integer number (753600).

Almost surely, 2^18126456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18126456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24115200).

18126456 is an abundant number, since it is smaller than the sum of its proper divisors (30103944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18126456 is a wasteful number, since it uses less digits than its factorization.

18126456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 464 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 18126456 is about 4257.5175865755. The cubic root of 18126456 is about 262.6864272055.

The spelling of 18126456 in words is "eighteen million, one hundred twenty-six thousand, four hundred fifty-six".