18144334 has 16 divisors (see below), whose sum is σ = 29725920. Its totient is φ = 8255520.

The previous prime is 18144317. The next prime is 18144353. The reversal of 18144334 is 43344181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3069 + ... + 6760.

It is an arithmetic number, because the mean of its divisors is an integer number (1857870).

Almost surely, 2^18144334 is an apocalyptic number.

18144334 is a deficient number, since it is larger than the sum of its proper divisors (11581586).

18144334 is a wasteful number, since it uses less digits than its factorization.

18144334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915.

The product of its digits is 4608, while the sum is 28.

The square root of 18144334 is about 4259.6166494181. The cubic root of 18144334 is about 262.7727607725.

The spelling of 18144334 in words is "eighteen million, one hundred forty-four thousand, three hundred thirty-four".