730000730 has 32 divisors (see below), whose sum is σ = 1345325328. Its totient is φ = 285120000.

The previous prime is 730000721. The next prime is 730000753. The reversal of 730000730 is 37000037.

It can be written as a sum of positive squares in 8 ways, for example, as 689640121 + 40360609 = 26261^2 + 6353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68780 + ... + 78680.

Almost surely, 2^730000730 is an apocalyptic number.

730000730 is a deficient number, since it is larger than the sum of its proper divisors (615324598).

730000730 is a wasteful number, since it uses less digits than its factorization.

730000730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10082.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 730000730 is about 27018.5256814653. The cubic root of 730000730 is about 900.4116347464.

Adding to 730000730 its reverse (37000037), we get a palindrome (767000767).

It can be divided in two parts, 7300007 and 30, that added together give a palindrome (7300037).

The spelling of 730000730 in words is "seven hundred thirty million, seven hundred thirty", and thus it is an aban number.