730344975840 has 384 divisors, whose sum is σ = 2648000678400. Its totient is φ = 190225469952.

The previous prime is 730344975821. The next prime is 730344975847. The reversal of 730344975840 is 48579443037.

730344975840 is a `hidden beast` number, since 7 + 30 + 34 + 497 + 58 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730344975847) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15022291 + ... + 15070829.

It is an arithmetic number, because the mean of its divisors is an integer number (6895835100).

Almost surely, 2^730344975840 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 730344975840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324000339200).

730344975840 is an abundant number, since it is smaller than the sum of its proper divisors (1917655702560).

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

730344975840 is an equidigital number, since it uses as much as digits as its factorization.

730344975840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48618 (or 48592 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 730344975840 in words is "seven hundred thirty billion, three hundred forty-four million, nine hundred seventy-five thousand, eight hundred forty".