722196 has 36 divisors (see below), whose sum is σ = 1895712. Its totient is φ = 240408.

The previous prime is 722173. The next prime is 722213. The reversal of 722196 is 691227.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

722196 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 11 ways as a sum of consecutive naturals, for example, 601 + ... + 1343.

2⁷²²¹⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947856).

722196 is an abundant number, since it is smaller than the sum of its proper divisors (1173516).

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

722196 is a wasteful number, since it uses less digits than its factorization.

722196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 748 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 722196 is about 849.8211576561. The cubic root of 722196 is about 89.7191243437.

The spelling of 722196 in words is "seven hundred twenty-two thousand, one hundred ninety-six".