730039841 has 4 divisors (see below), whose sum is σ = 730440384. Its totient is φ = 729639300.

The previous prime is 730039837. The next prime is 730039847. The reversal of 730039841 is 148930037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 730039841 - 2² = 730039837 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 (730039847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197525 + ... + 201186.

It is an arithmetic number, because the mean of its divisors is an integer number (182610096).

Almost surely, 2^730039841 is an apocalyptic number.

It is an amenable number.

730039841 is a deficient number, since it is larger than the sum of its proper divisors (400543).

730039841 is a wasteful number, since it uses less digits than its factorization.

730039841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400542.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 730039841 is about 27019.2494529363. The cubic root of 730039841 is about 900.4277148082.

Adding to 730039841 its reverse (148930037), we get a palindrome (878969878).

The spelling of 730039841 in words is "seven hundred thirty million, thirty-nine thousand, eight hundred forty-one".