18330448 has 20 divisors (see below), whose sum is σ = 37060128. Its totient is φ = 8766560.

The previous prime is 18330419. The next prime is 18330451. The reversal of 18330448 is 84403381.

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, 24538 + ... + 25273.

Almost surely, 2^18330448 is an apocalyptic number.

It is an amenable number.

18330448 is an abundant number, since it is smaller than the sum of its proper divisors (18729680).

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

18330448 is a wasteful number, since it uses less digits than its factorization.

18330448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49842 (or 49836 counting only the distinct ones).

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

The square root of 18330448 is about 4281.4072452875. The cubic root of 18330448 is about 263.6681628058.

The spelling of 18330448 in words is "eighteen million, three hundred thirty thousand, four hundred forty-eight".