18036344 has 16 divisors (see below), whose sum is σ = 34538400. Its totient is φ = 8826112.

The previous prime is 18036341. The next prime is 18036367. The reversal of 18036344 is 44363081.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036341) 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, 23609 + ... + 24360.

It is an arithmetic number, because the mean of its divisors is an integer number (2158650).

Almost surely, 2^18036344 is an apocalyptic number.

It is an amenable number.

18036344 is a deficient number, since it is larger than the sum of its proper divisors (16502056).

18036344 is a wasteful number, since it uses less digits than its factorization.

18036344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48022 (or 48018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 18036344 is about 4246.9217087203. The cubic root of 18036344 is about 262.2504064421.

The spelling of 18036344 in words is "eighteen million, thirty-six thousand, three hundred forty-four".