230722 has 4 divisors (see below), whose sum is σ = 346086. Its totient is φ = 115360.

The previous prime is 230719. The next prime is 230729. The reversal of 230722 is 227032.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 152881 + 77841 = 391^2 + 279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 230696 and 230705.

It is not an unprimeable number, because it can be changed into a prime (230729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57679 + ... + 57682.

2²³⁰⁷²² is an apocalyptic number.

230722 is a deficient number, since it is larger than the sum of its proper divisors (115364).

230722 is a wasteful number, since it uses less digits than its factorization.

230722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115363.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 230722 is about 480.3352995565. The cubic root of 230722 is about 61.3333005146. Note that the first 4 decimals are identical.

Adding to 230722 its reverse (227032), we get a palindrome (457754).

The spelling of 230722 in words is "two hundred thirty thousand, seven hundred twenty-two".