18125744 has 80 divisors (see below), whose sum is σ = 44163840. Its totient is φ = 7015680.

The previous prime is 18125717. The next prime is 18125749. The reversal of 18125744 is 44752181.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18125744.

It is not an unprimeable number, because it can be changed into a prime (18125749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85799 + ... + 86009.

It is an arithmetic number, because the mean of its divisors is an integer number (552048).

Almost surely, 2^18125744 is an apocalyptic number.

18125744 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 18125744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22081920).

18125744 is an abundant number, since it is smaller than the sum of its proper divisors (26038096).

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

18125744 is a wasteful number, since it uses less digits than its factorization.

18125744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 292 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 18125744 is about 4257.4339689536. The cubic root of 18125744 is about 262.6829877542.

The spelling of 18125744 in words is "eighteen million, one hundred twenty-five thousand, seven hundred forty-four".