730729240 has 32 divisors (see below), whose sum is σ = 1700838000. Its totient is φ = 282212224.

The previous prime is 730729213. The next prime is 730729247. The reversal of 730729240 is 42927037.

It is a junction number, because it is equal to n+sod(n) for n = 730729196 and 730729205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730729247) 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 7 ways as a sum of consecutive naturals, for example, 313810 + ... + 316129.

Almost surely, 2^730729240 is an apocalyptic number.

It is an amenable number.

730729240 is an abundant number, since it is smaller than the sum of its proper divisors (970108760).

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

730729240 is a wasteful number, since it uses less digits than its factorization.

730729240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629979 (or 629975 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 730729240 is about 27032.0039952646. The cubic root of 730729240 is about 900.7110594673.

The spelling of 730729240 in words is "seven hundred thirty million, seven hundred twenty-nine thousand, two hundred forty".