18044484 has 24 divisors (see below), whose sum is σ = 42274848. Its totient is φ = 5990400.

The previous prime is 18044479. The next prime is 18044519. The reversal of 18044484 is 48444081.

It is a happy 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, 159 + ... + 6009.

It is an arithmetic number, because the mean of its divisors is an integer number (1761452).

Almost surely, 2^18044484 is an apocalyptic number.

It is an amenable number.

18044484 is an abundant number, since it is smaller than the sum of its proper divisors (24230364).

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

18044484 is a wasteful number, since it uses less digits than its factorization.

18044484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115 (or 6113 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 18044484 is about 4247.8799418063. The cubic root of 18044484 is about 262.2898526708.

It can be divided in two parts, 18044 and 484, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18044484 in words is "eighteen million, forty-four thousand, four hundred eighty-four".