726022 has 16 divisors (see below), whose sum is σ = 1209744. Its totient is φ = 324000.

The previous prime is 726013. The next prime is 726023. The reversal of 726022 is 220627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726023) by changing a digit.

726022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (75609).

2⁷²⁶⁰²² is an apocalyptic number.

726022 is a deficient number, since it is larger than the sum of its proper divisors (483722).

726022 is a wasteful number, since it uses less digits than its factorization.

726022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 726022 is about 852.0692460123. The cubic root of 726022 is about 89.8772813037.

Adding to 726022 its reverse (220627), we get a palindrome (946649).

The spelling of 726022 in words is "seven hundred twenty-six thousand, twenty-two".