730457856 has 216 divisors, whose sum is σ = 2206220016. Its totient is φ = 232243200.

The previous prime is 730457843. The next prime is 730457857. The reversal of 730457856 is 658754037.

730457856 is a `hidden beast` number, since 73 + 0 + 4 + 578 + 5 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730457857) 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 23 ways as a sum of consecutive naturals, for example, 7232206 + ... + 7232306.

Almost surely, 2^730457856 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 730457856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103110008).

730457856 is an abundant number, since it is smaller than the sum of its proper divisors (1475762160).

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

730457856 is a wasteful number, since it uses less digits than its factorization.

730457856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 730457856 is about 27026.9838494790. The cubic root of 730457856 is about 900.5995412635.

The spelling of 730457856 in words is "seven hundred thirty million, four hundred fifty-seven thousand, eight hundred fifty-six".