722810 has 16 divisors (see below), whose sum is σ = 1419552. Its totient is φ = 262800.

The previous prime is 722807. The next prime is 722819. The reversal of 722810 is 18227.

It is a super-2 number, since 2×722810² = 1044908592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3176 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (88722).

2⁷²²⁸¹⁰ is an apocalyptic number.

722810 is a deficient number, since it is larger than the sum of its proper divisors (696742).

722810 is a wasteful number, since it uses less digits than its factorization.

722810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 722810 is about 850.1823333850. The cubic root of 722810 is about 89.7445430842.

It can be divided in two parts, 72 and 2810, that added together give a palindrome (2882).

The spelling of 722810 in words is "seven hundred twenty-two thousand, eight hundred ten".