18704468 has 6 divisors (see below), whose sum is σ = 32732826. Its totient is φ = 9352232.

The previous prime is 18704467. The next prime is 18704489. The reversal of 18704468 is 86440781.

It can be written as a sum of positive squares in only one way, i.e., 14047504 + 4656964 = 3748^2 + 2158^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18704461) by changing a digit.

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, 2338055 + ... + 2338062.

It is an arithmetic number, because the mean of its divisors is an integer number (5455471).

Almost surely, 2^18704468 is an apocalyptic number.

It is an amenable number.

18704468 is a deficient number, since it is larger than the sum of its proper divisors (14028358).

18704468 is a wasteful number, since it uses less digits than its factorization.

18704468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676121 (or 4676119 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 18704468 is about 4324.8662407062. The cubic root of 18704468 is about 265.4494236802.

The spelling of 18704468 in words is "eighteen million, seven hundred four thousand, four hundred sixty-eight".