731044480 has 64 divisors (see below), whose sum is σ = 1804078080. Its totient is φ = 282977280.

The previous prime is 731044469. The next prime is 731044493. The reversal of 731044480 is 84440137.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 1417 + ... + 38263.

It is an arithmetic number, because the mean of its divisors is an integer number (28188720).

Almost surely, 2^731044480 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 731044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902039040).

731044480 is an abundant number, since it is smaller than the sum of its proper divisors (1073033600).

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

731044480 is a wasteful number, since it uses less digits than its factorization.

731044480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36897 (or 36885 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 731044480 is about 27037.8342327931. The cubic root of 731044480 is about 900.8405644958.

The spelling of 731044480 in words is "seven hundred thirty-one million, forty-four thousand, four hundred eighty".