18132992 has 52 divisors (see below), whose sum is σ = 38333880. Its totient is φ = 8552448.

The previous prime is 18132991. The next prime is 18133007. The reversal of 18132992 is 29923181.

It is not an unprimeable number, because it can be changed into a prime (18132991) 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, 77708 + ... + 77940.

It is an arithmetic number, because the mean of its divisors is an integer number (737190).

Almost surely, 2^18132992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18132992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19166940).

18132992 is an abundant number, since it is smaller than the sum of its proper divisors (20200888).

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

18132992 is an equidigital number, since it uses as much as digits as its factorization.

18132992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 254 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 18132992 is about 4258.2851008358. The cubic root of 18132992 is about 262.7179963875.

The spelling of 18132992 in words is "eighteen million, one hundred thirty-two thousand, nine hundred ninety-two".