63216432 has 60 divisors (see below), whose sum is σ = 179189920. Its totient is φ = 20801664.

The previous prime is 63216371. The next prime is 63216451. The reversal of 63216432 is 23461236.

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 = 63216396 and 63216405.

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, 8598 + ... + 14154.

Almost surely, 2^63216432 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 63216432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89594960).

63216432 is an abundant number, since it is smaller than the sum of its proper divisors (115973488).

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

63216432 is a wasteful number, since it uses less digits than its factorization.

63216432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650 (or 5641 counting only the distinct ones).

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

The square root of 63216432 is about 7950.8761781328. The cubic root of 63216432 is about 398.3608588827.

Adding to 63216432 its reverse (23461236), we get a palindrome (86677668).

The spelling of 63216432 in words is "sixty-three million, two hundred sixteen thousand, four hundred thirty-two".