731273296 has 80 divisors (see below), whose sum is σ = 1559900160. Its totient is φ = 330071040.

The previous prime is 731273269. The next prime is 731273321. The reversal of 731273296 is 692372137.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3138396 + ... + 3138628.

It is an arithmetic number, because the mean of its divisors is an integer number (19498752).

Almost surely, 2^731273296 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 731273296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779950080).

731273296 is an abundant number, since it is smaller than the sum of its proper divisors (828626864).

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

731273296 is a wasteful number, since it uses less digits than its factorization.

731273296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 518 counting only the distinct ones).

The product of its digits is 95256, while the sum is 40.

The square root of 731273296 is about 27042.0653057417. The cubic root of 731273296 is about 900.9345420116.

It can be divided in two parts, 7312 and 73296, that added together give a palindrome (80608).

The spelling of 731273296 in words is "seven hundred thirty-one million, two hundred seventy-three thousand, two hundred ninety-six".