730522 has 8 divisors (see below), whose sum is σ = 1180116. Its totient is φ = 337152.

The previous prime is 730487. The next prime is 730537. The reversal of 730522 is 225037.

It is a happy number.

730522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 210681 = 721^2 + 459^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 730522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14023 + ... + 14074.

2⁷³⁰⁵²² is an apocalyptic number.

730522 is a deficient number, since it is larger than the sum of its proper divisors (449594).

730522 is a wasteful number, since it uses less digits than its factorization.

730522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28112.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 730522 is about 854.7057973361. The cubic root of 730522 is about 90.0625902066.

Adding to 730522 its reverse (225037), we get a palindrome (955559).

The spelling of 730522 in words is "seven hundred thirty thousand, five hundred twenty-two".