732181632 has 256 divisors, whose sum is σ = 2500485120. Its totient is φ = 184504320.

The previous prime is 732181631. The next prime is 732181661. The reversal of 732181632 is 236181237.

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 = 732181593 and 732181602.

It is not an unprimeable number, because it can be changed into a prime (732181631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 803257 + ... + 804167.

It is an arithmetic number, because the mean of its divisors is an integer number (9767520).

Almost surely, 2^732181632 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 732181632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250242560).

732181632 is an abundant number, since it is smaller than the sum of its proper divisors (1768303488).

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

732181632 is a wasteful number, since it uses less digits than its factorization.

732181632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 959 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 732181632 is about 27058.8549646876. The cubic root of 732181632 is about 901.3074134052.

The spelling of 732181632 in words is "seven hundred thirty-two million, one hundred eighty-one thousand, six hundred thirty-two".