18485632 has 64 divisors (see below), whose sum is σ = 42350400. Its totient is φ = 7948800.

The previous prime is 18485627. The next prime is 18485633. The reversal of 18485632 is 23658481.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 18485591 and 18485600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26407 + ... + 27097.

It is an arithmetic number, because the mean of its divisors is an integer number (661725).

Almost surely, 2^18485632 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 18485632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21175200).

18485632 is an abundant number, since it is smaller than the sum of its proper divisors (23864768).

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

18485632 is a wasteful number, since it uses less digits than its factorization.

18485632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 723 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 18485632 is about 4299.4920630233. The cubic root of 18485632 is about 264.4101369131.

The spelling of 18485632 in words is "eighteen million, four hundred eighty-five thousand, six hundred thirty-two".