724222 has 8 divisors (see below), whose sum is σ = 1121472. Its totient is φ = 350400.

The previous prime is 724219. The next prime is 724259. The reversal of 724222 is 222427.

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

It is a self number, because there is not a number n which added to its sum of digits gives 724222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5779 + ... + 5902.

It is an arithmetic number, because the mean of its divisors is an integer number (140184).

2⁷²⁴²²² is an apocalyptic number.

724222 is a deficient number, since it is larger than the sum of its proper divisors (397250).

724222 is a wasteful number, since it uses less digits than its factorization.

724222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11714.

The product of its digits is 448, while the sum is 19.

The square root of 724222 is about 851.0123383359. The cubic root of 724222 is about 89.8029433413.

Adding to 724222 its reverse (222427), we get a palindrome (946649).

It can be divided in two parts, 724 and 222, that added together give a triangular number (946 = T₄₃).

The spelling of 724222 in words is "seven hundred twenty-four thousand, two hundred twenty-two", and thus it is an iban number.