722415222 has 48 divisors (see below), whose sum is σ = 1605331728. Its totient is φ = 234662400.

The previous prime is 722415167. The next prime is 722415223. The reversal of 722415222 is 222514227.

722415222 is a `hidden beast` number, since 7 + 22 + 415 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722415223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464398 + ... + 465950.

It is an arithmetic number, because the mean of its divisors is an integer number (33444411).

Almost surely, 2^722415222 is an apocalyptic number.

722415222 is an abundant number, since it is smaller than the sum of its proper divisors (882916506).

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

722415222 is a wasteful number, since it uses less digits than its factorization.

722415222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 2202 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 722415222 is about 26877.7830558995. The cubic root of 722415222 is about 897.2820148072.

Adding to 722415222 its reverse (222514227), we get a palindrome (944929449).

The spelling of 722415222 in words is "seven hundred twenty-two million, four hundred fifteen thousand, two hundred twenty-two".