18069632 has 96 divisors (see below), whose sum is σ = 43488720. Its totient is φ = 7451136.

The previous prime is 18069629. The next prime is 18069641. The reversal of 18069632 is 23696081.

It is a junction number, because it is equal to n+sod(n) for n = 18069592 and 18069601.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269663 + ... + 269729.

Almost surely, 2^18069632 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 18069632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21744360).

18069632 is an abundant number, since it is smaller than the sum of its proper divisors (25419088).

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

18069632 is an equidigital number, since it uses as much as digits as its factorization.

18069632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 18069632 is about 4250.8389760140. The cubic root of 18069632 is about 262.4116443375.

The spelling of 18069632 in words is "eighteen million, sixty-nine thousand, six hundred thirty-two".