18342448 has 20 divisors (see below), whose sum is σ = 37409560. Its totient is φ = 8688384.

The previous prime is 18342437. The next prime is 18342449. The reversal of 18342448 is 84424381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18342449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29865 + ... + 30472.

It is an arithmetic number, because the mean of its divisors is an integer number (1870478).

Almost surely, 2^18342448 is an apocalyptic number.

It is an amenable number.

18342448 is an abundant number, since it is smaller than the sum of its proper divisors (19067112).

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

18342448 is a wasteful number, since it uses less digits than its factorization.

18342448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60364 (or 60358 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 18342448 is about 4282.8084243870. The cubic root of 18342448 is about 263.7256869093.

The spelling of 18342448 in words is "eighteen million, three hundred forty-two thousand, four hundred forty-eight".