18441744 has 20 divisors (see below), whose sum is σ = 47641296. Its totient is φ = 6147232.

The previous prime is 18441743. The next prime is 18441751. The reversal of 18441744 is 44714481.

It is not an unprimeable number, because it can be changed into a prime (18441743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192054 + ... + 192149.

Almost surely, 2^18441744 is an apocalyptic number.

It is an amenable number.

18441744 is an abundant number, since it is smaller than the sum of its proper divisors (29199552).

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

18441744 is a wasteful number, since it uses less digits than its factorization.

18441744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384214 (or 384208 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 18441744 is about 4294.3851713604. The cubic root of 18441744 is about 264.2007197137.

The spelling of 18441744 in words is "eighteen million, four hundred forty-one thousand, seven hundred forty-four".