730447315840 has 512 divisors, whose sum is σ = 2026605588480. Its totient is φ = 249274368000.

The previous prime is 730447315837. The next prime is 730447315847. The reversal of 730447315840 is 48513744037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730447315847) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2599456500 + ... + 2599456780.

It is an arithmetic number, because the mean of its divisors is an integer number (3958214040).

Almost surely, 2^730447315840 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 730447315840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013302794240).

730447315840 is an abundant number, since it is smaller than the sum of its proper divisors (1296158272640).

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

730447315840 is a wasteful number, since it uses less digits than its factorization.

730447315840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 730447315840 in words is "seven hundred thirty billion, four hundred forty-seven million, three hundred fifteen thousand, eight hundred forty".