18144992 has 12 divisors (see below), whose sum is σ = 35723016. Its totient is φ = 9072480.

The previous prime is 18144991. The next prime is 18145003. The reversal of 18144992 is 29944181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283484 + ... + 283547.

It is an arithmetic number, because the mean of its divisors is an integer number (2976918).

Almost surely, 2^18144992 is an apocalyptic number.

It is an amenable number.

18144992 is a deficient number, since it is larger than the sum of its proper divisors (17578024).

18144992 is an equidigital number, since it uses as much as digits as its factorization.

18144992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567041 (or 567033 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 18144992 is about 4259.6938857153. The cubic root of 18144992 is about 262.7759371982.

The spelling of 18144992 in words is "eighteen million, one hundred forty-four thousand, nine hundred ninety-two".