18048816 has 30 divisors (see below), whose sum is σ = 50512020. Its totient is φ = 6016224.

The previous prime is 18048809. The next prime is 18048847. The reversal of 18048816 is 61884081.

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

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 5 ways as a sum of consecutive naturals, for example, 62526 + ... + 62813.

It is an arithmetic number, because the mean of its divisors is an integer number (1683734).

Almost surely, 2^18048816 is an apocalyptic number.

18048816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18048816 is an abundant number, since it is smaller than the sum of its proper divisors (32463204).

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

18048816 is a wasteful number, since it uses less digits than its factorization.

18048816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125353 (or 125344 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 18048816 is about 4248.3898126231. The cubic root of 18048816 is about 262.3108405938.

The spelling of 18048816 in words is "eighteen million, forty-eight thousand, eight hundred sixteen".