18243048 has 32 divisors (see below), whose sum is σ = 47592000. Its totient is φ = 5816448.

The previous prime is 18243047. The next prime is 18243053. The reversal of 18243048 is 84034281.

It is not an unprimeable number, because it can be changed into a prime (18243041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15973 + ... + 17076.

It is an arithmetic number, because the mean of its divisors is an integer number (1487250).

Almost surely, 2^18243048 is an apocalyptic number.

It is an amenable number.

18243048 is an abundant number, since it is smaller than the sum of its proper divisors (29348952).

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

18243048 is a wasteful number, since it uses less digits than its factorization.

18243048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33081 (or 33077 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 18243048 is about 4271.1881251006. The cubic root of 18243048 is about 263.2484363761.

The spelling of 18243048 in words is "eighteen million, two hundred forty-three thousand, forty-eight".