18481024 has 16 divisors (see below), whose sum is σ = 36817920. Its totient is φ = 9240448.

The previous prime is 18481009. The next prime is 18481039. The reversal of 18481024 is 42018481.

It is an interprime number because it is at equal distance from previous prime (18481009) and next prime (18481039).

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 18480983 and 18481001.

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 as a sum of consecutive naturals, namely, 72064 + ... + 72319.

It is an arithmetic number, because the mean of its divisors is an integer number (2301120).

Almost surely, 2^18481024 is an apocalyptic number.

It is an amenable number.

18481024 is a deficient number, since it is larger than the sum of its proper divisors (18336896).

18481024 is an equidigital number, since it uses as much as digits as its factorization.

18481024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144397 (or 144385 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 18481024 is about 4298.9561523700. The cubic root of 18481024 is about 264.3881648365.

The spelling of 18481024 in words is "eighteen million, four hundred eighty-one thousand, twenty-four".