722322 has 12 divisors (see below), whose sum is σ = 1565070. Its totient is φ = 240768.

The previous prime is 722321. The next prime is 722333. The reversal of 722322 is 223227.

It can be written as a sum of positive squares in only one way, i.e., 720801 + 1521 = 849^2 + 39^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 40129 = 722322 / (7 + 2 + 2 + 3 + 2 + 2).

It is a d-powerful number, because it can be written as 7³ + 2⁶ + 3¹¹ + 2¹² + 2¹⁴ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 722295 and 722304.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722322.

It is not an unprimeable number, because it can be changed into a prime (722321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20047 + ... + 20082.

2⁷²²³²² is an apocalyptic number.

722322 is an abundant number, since it is smaller than the sum of its proper divisors (842748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722322 is a wasteful number, since it uses less digits than its factorization.

722322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40137 (or 40134 counting only the distinct ones).

The product of its digits is 336, while the sum is 18.

The square root of 722322 is about 849.8952876678. The cubic root of 722322 is about 89.7243417419.

Adding to 722322 its reverse (223227), we get a palindrome (945549).

The spelling of 722322 in words is "seven hundred twenty-two thousand, three hundred twenty-two", and thus it is an iban number.