730656403400 has 384 divisors, whose sum is σ = 2189859840000. Its totient is φ = 220029696000.

The previous prime is 730656403387. The next prime is 730656403409. The reversal of 730656403400 is 4304656037.

It is not an unprimeable number, because it can be changed into a prime (730656403409) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 500791871 + ... + 500793329.

It is an arithmetic number, because the mean of its divisors is an integer number (5702760000).

Almost surely, 2^730656403400 is an apocalyptic number.

730656403400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730656403400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094929920000).

730656403400 is an abundant number, since it is smaller than the sum of its proper divisors (1459203436600).

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

730656403400 is a wasteful number, since it uses less digits than its factorization.

730656403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 730656403400 in words is "seven hundred thirty billion, six hundred fifty-six million, four hundred three thousand, four hundred".