722397246 has 16 divisors (see below), whose sum is σ = 1445122944. Its totient is φ = 240744344.

The previous prime is 722397199. The next prime is 722397257. The reversal of 722397246 is 642793227.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 722397198 and 722397207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22111 + ... + 43973.

It is an arithmetic number, because the mean of its divisors is an integer number (90320184).

Almost surely, 2^722397246 is an apocalyptic number.

722397246 is an abundant number, since it is smaller than the sum of its proper divisors (722725698).

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

722397246 is a wasteful number, since it uses less digits than its factorization.

722397246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27375.

The product of its digits is 254016, while the sum is 42.

The square root of 722397246 is about 26877.4486512392. The cubic root of 722397246 is about 897.2745723305.

The spelling of 722397246 in words is "seven hundred twenty-two million, three hundred ninety-seven thousand, two hundred forty-six".