7443222 has 32 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 2383680.

The previous prime is 7443221. The next prime is 7443223. The reversal of 7443222 is 2223447.

It is an interprime number because it is at equal distance from previous prime (7443221) and next prime (7443223).

It is a d-powerful number, because it can be written as 7⁸ + 4⁷ + 4⁸ + 3¹³ + 2 + 2⁷ + 2¹¹ .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 7443192 and 7443201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7443221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19243 + ... + 19625.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^7443222 is an apocalyptic number.

7443222 is an abundant number, since it is smaller than the sum of its proper divisors (8039658).

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

7443222 is a wasteful number, since it uses less digits than its factorization.

7443222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

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

The square root of 7443222 is about 2728.2268967225. The cubic root of 7443222 is about 195.2481784185.

Adding to 7443222 its reverse (2223447), we get a palindrome (9666669).

The spelling of 7443222 in words is "seven million, four hundred forty-three thousand, two hundred twenty-two".