18035944 has 8 divisors (see below), whose sum is σ = 33817410. Its totient is φ = 9017968.

The previous prime is 18035923. The next prime is 18035947. The reversal of 18035944 is 44953081.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 2528100 = 3938^2 + 1590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×18035944² = 650590551942272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18035947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127239 + ... + 1127254.

Almost surely, 2^18035944 is an apocalyptic number.

It is an amenable number.

18035944 is a deficient number, since it is larger than the sum of its proper divisors (15781466).

18035944 is a wasteful number, since it uses less digits than its factorization.

18035944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254499 (or 2254495 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 18035944 is about 4246.8746155261. The cubic root of 18035944 is about 262.2484677466.

The spelling of 18035944 in words is "eighteen million, thirty-five thousand, nine hundred forty-four".