18065532 has 24 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 5995696.

The previous prime is 18065503. The next prime is 18065533. The reversal of 18065532 is 23556081.

It is a self number, because there is not a number n which added to its sum of digits gives 18065532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18065533) 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, 282 + ... + 6017.

It is an arithmetic number, because the mean of its divisors is an integer number (1764000).

Almost surely, 2^18065532 is an apocalyptic number.

18065532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18065532 is an abundant number, since it is smaller than the sum of its proper divisors (24270468).

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

18065532 is a wasteful number, since it uses less digits than its factorization.

18065532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545 (or 6543 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 18065532 is about 4250.3566909143. The cubic root of 18065532 is about 262.3917957664.

The spelling of 18065532 in words is "eighteen million, sixty-five thousand, five hundred thirty-two".