7422222 has 8 divisors (see below), whose sum is σ = 14844456. Its totient is φ = 2474072.

The previous prime is 7422221. The next prime is 7422223. The reversal of 7422222 is 2222247.

It is an interprime number because it is at equal distance from previous prime (7422221) and next prime (7422223).

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

7422222 is an admirable number.

7422222 is a modest number, since divided by 2222 gives 742 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618513 + ... + 618524.

It is an arithmetic number, because the mean of its divisors is an integer number (1855557).

Almost surely, 2^7422222 is an apocalyptic number.

7422222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7422222 is a wasteful number, since it uses less digits than its factorization.

7422222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237042.

The product of its digits is 896, while the sum is 21.

The square root of 7422222 is about 2724.3755247763. The cubic root of 7422222 is about 195.0643837366.

Adding to 7422222 its reverse (2222247), we get a palindrome (9644469).

The spelling of 7422222 in words is "seven million, four hundred twenty-two thousand, two hundred twenty-two".