18144948 has 24 divisors (see below), whose sum is σ = 43483552. Its totient is φ = 5884704.

The previous prime is 18144901. The next prime is 18144949. The reversal of 18144948 is 84944181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144949) 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, 19990 + ... + 20877.

Almost surely, 2^18144948 is an apocalyptic number.

It is an amenable number.

18144948 is an abundant number, since it is smaller than the sum of its proper divisors (25338604).

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

18144948 is a wasteful number, since it uses less digits than its factorization.

18144948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40911 (or 40909 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 18144948 is about 4259.6887210218. The cubic root of 18144948 is about 262.7757247952.

The spelling of 18144948 in words is "eighteen million, one hundred forty-four thousand, nine hundred forty-eight".