18006744 has 32 divisors (see below), whose sum is σ = 51448320. Its totient is φ = 5144736.

The previous prime is 18006743. The next prime is 18006763. The reversal of 18006744 is 44760081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18006743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53424 + ... + 53759.

It is an arithmetic number, because the mean of its divisors is an integer number (1607760).

Almost surely, 2^18006744 is an apocalyptic number.

18006744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18006744 is an abundant number, since it is smaller than the sum of its proper divisors (33441576).

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

18006744 is a wasteful number, since it uses less digits than its factorization.

18006744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107199 (or 107195 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 18006744 is about 4243.4354007101. The cubic root of 18006744 is about 262.1068654822.

The spelling of 18006744 in words is "eighteen million, six thousand, seven hundred forty-four".