730581768 has 320 divisors, whose sum is σ = 2526480000. Its totient is φ = 196608384.

The previous prime is 730581757. The next prime is 730581773. The reversal of 730581768 is 867185037.

730581768 is a `hidden beast` number, since 7 + 3 + 0 + 581 + 7 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4222930 + ... + 4223102.

It is an arithmetic number, because the mean of its divisors is an integer number (7895250).

Almost surely, 2^730581768 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 730581768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263240000).

730581768 is an abundant number, since it is smaller than the sum of its proper divisors (1795898232).

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

730581768 is a wasteful number, since it uses less digits than its factorization.

730581768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 730581768 is about 27029.2761279321. The cubic root of 730581768 is about 900.6504631065.

The spelling of 730581768 in words is "seven hundred thirty million, five hundred eighty-one thousand, seven hundred sixty-eight".