18534448 has 20 divisors (see below), whose sum is σ = 35977608. Its totient is φ = 9249920.

The previous prime is 18534431. The next prime is 18534457. The reversal of 18534448 is 84443581.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14940 + ... + 16132.

Almost surely, 2^18534448 is an apocalyptic number.

It is an amenable number.

18534448 is a deficient number, since it is larger than the sum of its proper divisors (17443160).

18534448 is a wasteful number, since it uses less digits than its factorization.

18534448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2166 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 18534448 is about 4305.1652697661. The cubic root of 18534448 is about 264.6426796808.

The spelling of 18534448 in words is "eighteen million, five hundred thirty-four thousand, four hundred forty-eight".