18378348 has 24 divisors (see below), whose sum is σ = 42952560. Its totient is φ = 6116160.

The previous prime is 18378337. The next prime is 18378379. The reversal of 18378348 is 84387381.

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, 12618 + ... + 13998.

It is an arithmetic number, because the mean of its divisors is an integer number (1789690).

Almost surely, 2^18378348 is an apocalyptic number.

It is an amenable number.

18378348 is an abundant number, since it is smaller than the sum of its proper divisors (24574212).

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

18378348 is a wasteful number, since it uses less digits than its factorization.

18378348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2495 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 18378348 is about 4286.9975507341. The cubic root of 18378348 is about 263.8976301904.

The spelling of 18378348 in words is "eighteen million, three hundred seventy-eight thousand, three hundred forty-eight".