18061248 has 56 divisors (see below), whose sum is σ = 50312320. Its totient is φ = 5702400.

The previous prime is 18061237. The next prime is 18061249. The reversal of 18061248 is 84216081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18061249) 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 7 ways as a sum of consecutive naturals, for example, 1173 + ... + 6123.

Almost surely, 2^18061248 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 18061248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25156160).

18061248 is an abundant number, since it is smaller than the sum of its proper divisors (32251072).

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

18061248 is a wasteful number, since it uses less digits than its factorization.

18061248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18061248 is about 4249.8527033298. The cubic root of 18061248 is about 262.3710532217.

The spelling of 18061248 in words is "eighteen million, sixty-one thousand, two hundred forty-eight".