18838468 has 12 divisors (see below), whose sum is σ = 35964432. Its totient is φ = 8562920.

The previous prime is 18838451. The next prime is 18838529. The reversal of 18838468 is 86483881.

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, 214030 + ... + 214117.

It is an arithmetic number, because the mean of its divisors is an integer number (2997036).

Almost surely, 2^18838468 is an apocalyptic number.

It is an amenable number.

18838468 is a deficient number, since it is larger than the sum of its proper divisors (17125964).

18838468 is a wasteful number, since it uses less digits than its factorization.

18838468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428162 (or 428160 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 18838468 is about 4340.3304021699. The cubic root of 18838468 is about 266.0818147715.

It can be divided in two parts, 18838 and 468, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 18838468 in words is "eighteen million, eight hundred thirty-eight thousand, four hundred sixty-eight".