43261632 has 168 divisors, whose sum is σ = 134721600. Its totient is φ = 13229568.

The previous prime is 43261619. The next prime is 43261657. The reversal of 43261632 is 23616234.

43261632 is a `hidden beast` number, since 4 + 3 + 26 + 1 + 632 = 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 = 43261596 and 43261605.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645663 + ... + 645729.

Almost surely, 2^43261632 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 43261632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67360800).

43261632 is an abundant number, since it is smaller than the sum of its proper divisors (91459968).

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

43261632 is a wasteful number, since it uses less digits than its factorization.

43261632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 150 counting only the distinct ones).

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

The square root of 43261632 is about 6577.3575241126. The cubic root of 43261632 is about 351.0489132409.

Adding to 43261632 its reverse (23616234), we get a palindrome (66877866).

It can be divided in two parts, 4 and 3261632, that added together give a square (3261636 = 1806²).

The spelling of 43261632 in words is "forty-three million, two hundred sixty-one thousand, six hundred thirty-two".