731116032 has 80 divisors (see below), whose sum is σ = 1954240992. Its totient is φ = 242892800.

The previous prime is 731115961. The next prime is 731116051. The reversal of 731116032 is 230611137.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 731115993 and 731116011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615343 + ... + 616529.

Almost surely, 2^731116032 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 731116032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977120496).

731116032 is an abundant number, since it is smaller than the sum of its proper divisors (1223124960).

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

731116032 is a wasteful number, since it uses less digits than its factorization.

731116032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 731116032 is about 27039.1573833210. The cubic root of 731116032 is about 900.8699538799.

Adding to 731116032 its reverse (230611137), we get a palindrome (961727169).

The spelling of 731116032 in words is "seven hundred thirty-one million, one hundred sixteen thousand, thirty-two".