18034384 has 10 divisors (see below), whose sum is σ = 34941650. Its totient is φ = 9017184.

The previous prime is 18034361. The next prime is 18034391. The reversal of 18034384 is 48343081.

It can be written as a sum of positive squares in only one way, i.e., 17640000 + 394384 = 4200^2 + 628^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563559 + ... + 563590.

It is an arithmetic number, because the mean of its divisors is an integer number (3494165).

Almost surely, 2^18034384 is an apocalyptic number.

It is an amenable number.

18034384 is a deficient number, since it is larger than the sum of its proper divisors (16907266).

18034384 is a wasteful number, since it uses less digits than its factorization.

18034384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127157 (or 1127151 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 18034384 is about 4246.6909470787. The cubic root of 18034384 is about 262.2409065602.

The spelling of 18034384 in words is "eighteen million, thirty-four thousand, three hundred eighty-four".