18448718 has 24 divisors (see below), whose sum is σ = 29325816. Its totient is φ = 8696160.

The previous prime is 18448709. The next prime is 18448739. The reversal of 18448718 is 81784481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275321 + ... + 275387.

It is an arithmetic number, because the mean of its divisors is an integer number (1221909).

Almost surely, 2^18448718 is an apocalyptic number.

18448718 is a deficient number, since it is larger than the sum of its proper divisors (10877098).

18448718 is an equidigital number, since it uses as much as digits as its factorization.

18448718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 167 counting only the distinct ones).

The product of its digits is 57344, while the sum is 41.

The square root of 18448718 is about 4295.1970851173. The cubic root of 18448718 is about 264.2340192326.

The spelling of 18448718 in words is "eighteen million, four hundred forty-eight thousand, seven hundred eighteen".