18132708 has 24 divisors (see below), whose sum is σ = 46156320. Its totient is φ = 5494720.

The previous prime is 18132703. The next prime is 18132721. The reversal of 18132708 is 80723181.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18132703) 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, 68553 + ... + 68816.

It is an arithmetic number, because the mean of its divisors is an integer number (1923180).

Almost surely, 2^18132708 is an apocalyptic number.

It is an amenable number.

18132708 is an abundant number, since it is smaller than the sum of its proper divisors (28023612).

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

18132708 is a wasteful number, since it uses less digits than its factorization.

18132708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137387 (or 137385 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 18132708 is about 4258.2517539479. The cubic root of 18132708 is about 262.7166248121.

Adding to 18132708 its reverse (80723181), we get a palindrome (98855889).

The spelling of 18132708 in words is "eighteen million, one hundred thirty-two thousand, seven hundred eight".