722222232 has 16 divisors (see below), whose sum is σ = 1805555640. Its totient is φ = 240740736.

The previous prime is 722222231. The next prime is 722222233. The reversal of 722222232 is 232222227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (722222231) and next prime (722222233).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 30092593 = 722222232 / (7 + 2 + 2 + 2 + 2 + 2 + 2 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722222231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15046273 + ... + 15046320.

Almost surely, 2^722222232 is an apocalyptic number.

It is an amenable number.

722222232 is an abundant number, since it is smaller than the sum of its proper divisors (1083333408).

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

722222232 is a wasteful number, since it uses less digits than its factorization.

722222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30092602 (or 30092598 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 722222232 is about 26874.1926762461. The cubic root of 722222232 is about 897.2021060635.

Adding to 722222232 its reverse (232222227), we get a palindrome (954444459).

The spelling of 722222232 in words is "seven hundred twenty-two million, two hundred twenty-two thousand, two hundred thirty-two".