18904403348 has 12 divisors (see below), whose sum is σ = 33214511232. Its totient is φ = 9414543000.

The previous prime is 18904403339. The next prime is 18904403351. The reversal of 18904403348 is 84330440981.

It is a junction number, because it is equal to n+sod(n) for n = 18904403299 and 18904403308.

It is a congruent number.

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, 9413540 + ... + 9415547.

It is an arithmetic number, because the mean of its divisors is an integer number (2767875936).

Almost surely, 2^18904403348 is an apocalyptic number.

It is an amenable number.

18904403348 is a deficient number, since it is larger than the sum of its proper divisors (14310107884).

18904403348 is a wasteful number, since it uses less digits than its factorization.

18904403348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18829342 (or 18829340 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 18904403348 in words is "eighteen billion, nine hundred four million, four hundred three thousand, three hundred forty-eight".