730422905 has 8 divisors (see below), whose sum is σ = 876659784. Its totient is φ = 584236800.

The previous prime is 730422887. The next prime is 730422907. The reversal of 730422905 is 509224037.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7458361 + 722964544 = 2731^2 + 26888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 730422905 - 2¹² = 730418809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (730422907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35825 + ... + 52385.

It is an arithmetic number, because the mean of its divisors is an integer number (109582473).

Almost surely, 2^730422905 is an apocalyptic number.

It is an amenable number.

730422905 is a deficient number, since it is larger than the sum of its proper divisors (146236879).

730422905 is a wasteful number, since it uses less digits than its factorization.

730422905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 730422905 is about 27026.3372472113. The cubic root of 730422905 is about 900.5851770505.

The spelling of 730422905 in words is "seven hundred thirty million, four hundred twenty-two thousand, nine hundred five".