730440533 has 4 divisors (see below), whose sum is σ = 738647820. Its totient is φ = 722233248.

The previous prime is 730440511. The next prime is 730440551. The reversal of 730440533 is 335044037.

It is a happy number.

730440533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 248945284 + 481495249 = 15778^2 + 21943^2 .

It is a cyclic number.

It is not a de Polignac number, because 730440533 - 2¹⁰ = 730439509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730440496 and 730440505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730440563) 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, 4103510 + ... + 4103687.

It is an arithmetic number, because the mean of its divisors is an integer number (184661955).

Almost surely, 2^730440533 is an apocalyptic number.

It is an amenable number.

730440533 is a deficient number, since it is larger than the sum of its proper divisors (8207287).

730440533 is an equidigital number, since it uses as much as digits as its factorization.

730440533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8207286.

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 730440533 is about 27026.6633715670. The cubic root of 730440533 is about 900.5924218889.

The spelling of 730440533 in words is "seven hundred thirty million, four hundred forty thousand, five hundred thirty-three".