18810048 has 42 divisors (see below), whose sum is σ = 49927764. Its totient is φ = 6249984.

The previous prime is 18809993. The next prime is 18810073. The reversal of 18810048 is 84001881.

It is a junction number, because it is equal to n+sod(n) for n = 18809997 and 18810024.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59940 + ... + 60252.

Almost surely, 2^18810048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18810048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24963882).

18810048 is an abundant number, since it is smaller than the sum of its proper divisors (31117716).

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

18810048 is an frugal number, since it uses more digits than its factorization.

18810048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 18810048 is about 4337.0552221525. The cubic root of 18810048 is about 265.9479424010.

The spelling of 18810048 in words is "eighteen million, eight hundred ten thousand, forty-eight".