731343668 has 24 divisors (see below), whose sum is σ = 1469687520. Its totient is φ = 314932320.

The previous prime is 731343667. The next prime is 731343707. The reversal of 731343668 is 866343137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731343667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436571 + ... + 438242.

It is an arithmetic number, because the mean of its divisors is an integer number (61236980).

Almost surely, 2^731343668 is an apocalyptic number.

It is an amenable number.

731343668 is an abundant number, since it is smaller than the sum of its proper divisors (738343852).

731343668 is a wasteful number, since it uses less digits than its factorization.

731343668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874847 (or 874845 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 731343668 is about 27043.3664324544. The cubic root of 731343668 is about 900.9634407066.

The spelling of 731343668 in words is "seven hundred thirty-one million, three hundred forty-three thousand, six hundred sixty-eight".