18061344 has 216 divisors, whose sum is σ = 64366848. Its totient is φ = 4700160.

The previous prime is 18061331. The next prime is 18061349. The reversal of 18061344 is 44316081.

18061344 is a `hidden beast` number, since 1 + 8 + 0 + 613 + 44 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18061349) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 582609 + ... + 582639.

Almost surely, 2^18061344 is an apocalyptic number.

18061344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18061344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32183424).

18061344 is an abundant number, since it is smaller than the sum of its proper divisors (46305504).

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

18061344 is a wasteful number, since it uses less digits than its factorization.

18061344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 18061344 is about 4249.8639978239. The cubic root of 18061344 is about 262.3715180765.

The spelling of 18061344 in words is "eighteen million, sixty-one thousand, three hundred forty-four".