3638232 has 96 divisors (see below), whose sum is σ = 11138400. Its totient is φ = 1070784.

The previous prime is 3638227. The next prime is 3638233. The reversal of 3638232 is 2328363.

3638232 is a `hidden beast` number, since 3 + 638 + 23 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3638196 and 3638205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158173 + ... + 158195.

It is an arithmetic number, because the mean of its divisors is an integer number (116025).

Almost surely, 2^3638232 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 3638232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5569200).

3638232 is an abundant number, since it is smaller than the sum of its proper divisors (7500168).

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

3638232 is a wasteful number, since it uses less digits than its factorization.

3638232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 41 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 3638232 is about 1907.4150046594. The cubic root of 3638232 is about 153.8025241922.

The spelling of 3638232 in words is "three million, six hundred thirty-eight thousand, two hundred thirty-two".