722210 has 8 divisors (see below), whose sum is σ = 1299996. Its totient is φ = 288880.

The previous prime is 722173. The next prime is 722213. The reversal of 722210 is 12227.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 34969 = 829^2 + 187^2 .

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

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722210.

It is not an unprimeable number, because it can be changed into a prime (722213) 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 in 3 ways as a sum of consecutive naturals, for example, 36101 + ... + 36120.

2⁷²²²¹⁰ is an apocalyptic number.

722210 is a deficient number, since it is larger than the sum of its proper divisors (577786).

722210 is a wasteful number, since it uses less digits than its factorization.

722210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72228.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 722210 is about 849.8293946434. The cubic root of 722210 is about 89.7197040846.

Adding to 722210 its reverse (12227), we get a palindrome (734437).

The spelling of 722210 in words is "seven hundred twenty-two thousand, two hundred ten", and thus it is an iban number.