730384320 has 224 divisors, whose sum is σ = 2548615680. Its totient is φ = 176394240.

The previous prime is 730384231. The next prime is 730384351. The reversal of 730384320 is 23483037.

It is a super-2 number, since 2×730384320² = 1066922509803724800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 418650 + ... + 420390.

Almost surely, 2^730384320 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 730384320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274307840).

730384320 is an abundant number, since it is smaller than the sum of its proper divisors (1818231360).

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

730384320 is a wasteful number, since it uses less digits than its factorization.

730384320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 730384320 is about 27025.6233970652. The cubic root of 730384320 is about 900.5693187987.

The spelling of 730384320 in words is "seven hundred thirty million, three hundred eighty-four thousand, three hundred twenty".