18744120 has 48 divisors (see below), whose sum is σ = 60919560. Its totient is φ = 4998336.

The previous prime is 18744113. The next prime is 18744133. The reversal of 18744120 is 2144781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25674 + ... + 26393.

Almost surely, 2^18744120 is an apocalyptic number.

18744120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18744120 is an abundant number, since it is smaller than the sum of its proper divisors (42175440).

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

18744120 is a wasteful number, since it uses less digits than its factorization.

18744120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52084 (or 52077 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 18744120 is about 4329.4480017665. The cubic root of 18744120 is about 265.6368685816.

The spelling of 18744120 in words is "eighteen million, seven hundred forty-four thousand, one hundred twenty".