730354320 has 200 divisors, whose sum is σ = 2599443000. Its totient is φ = 189941760.

The previous prime is 730354309. The next prime is 730354379. The reversal of 730354320 is 23453037.

It can be written as a sum of positive squares in 4 ways, for example, as 22581504 + 707772816 = 4752^2 + 26604^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 264306 + ... + 267054.

It is an arithmetic number, because the mean of its divisors is an integer number (12997215).

Almost surely, 2^730354320 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 730354320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299721500).

730354320 is an abundant number, since it is smaller than the sum of its proper divisors (1869088680).

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

730354320 is a wasteful number, since it uses less digits than its factorization.

730354320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 730354320 is about 27025.0683625407. The cubic root of 730354320 is about 900.5569885553.

The spelling of 730354320 in words is "seven hundred thirty million, three hundred fifty-four thousand, three hundred twenty".