18427248 has 120 divisors (see below), whose sum is σ = 59850336. Its totient is φ = 5184000.

The previous prime is 18427223. The next prime is 18427259. The reversal of 18427248 is 84272481.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 101718 + ... + 101898.

It is a vampire number, since it can be written as 2172 ⋅ 8484 (with its own digits).

Almost surely, 2^18427248 is an apocalyptic number.

18427248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18427248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29925168).

18427248 is an abundant number, since it is smaller than the sum of its proper divisors (41423088).

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

18427248 is a wasteful number, since it uses less digits than its factorization.

18427248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 294 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 18427248 is about 4292.6970543005. The cubic root of 18427248 is about 264.1314772106.

The spelling of 18427248 in words is "eighteen million, four hundred twenty-seven thousand, two hundred forty-eight".