722522 has 16 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 340032.

The previous prime is 722521. The next prime is 722537. The reversal of 722522 is 225227.

It is a junction number, because it is equal to n+sod(n) for n = 722494 and 722503.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722522.

It is not an unprimeable number, because it can be changed into a prime (722521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁷²²⁵²² is an apocalyptic number.

722522 is a deficient number, since it is larger than the sum of its proper divisors (426598).

722522 is a wasteful number, since it uses less digits than its factorization.

722522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 560, while the sum is 20.

The square root of 722522 is about 850.0129410780. The cubic root of 722522 is about 89.7326220806.

Adding to 722522 its reverse (225227), we get a palindrome (947749).

The spelling of 722522 in words is "seven hundred twenty-two thousand, five hundred twenty-two".