18035564 has 24 divisors (see below), whose sum is σ = 32869200. Its totient is φ = 8648640.

The previous prime is 18035561. The next prime is 18035573. The reversal of 18035564 is 46553081.

It is a happy number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 18035564.

It is not an unprimeable number, because it can be changed into a prime (18035561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20567 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (1369550).

Almost surely, 2^18035564 is an apocalyptic number.

It is an amenable number.

18035564 is a deficient number, since it is larger than the sum of its proper divisors (14833636).

18035564 is a wasteful number, since it uses less digits than its factorization.

18035564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 18035564 is about 4246.8298765079. The cubic root of 18035564 is about 262.2466259593.

The spelling of 18035564 in words is "eighteen million, thirty-five thousand, five hundred sixty-four".