7222344440 has 32 divisors (see below), whose sum is σ = 16810632000. Its totient is φ = 2789318784.

The previous prime is 7222344439. The next prime is 7222344473. The reversal of 7222344440 is 444432227.

It is a super-3 number, since 3×7222344440³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7222344397 and 7222344406.

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, 3111920 + ... + 3114239.

It is an arithmetic number, because the mean of its divisors is an integer number (525332250).

Almost surely, 2^7222344440 is an apocalyptic number.

It is an amenable number.

7222344440 is an abundant number, since it is smaller than the sum of its proper divisors (9588287560).

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

7222344440 is a wasteful number, since it uses less digits than its factorization.

7222344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226199 (or 6226195 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 32.

The square root of 7222344440 is about 84984.3776231844. The cubic root of 7222344440 is about 1932.9742359874.

Adding to 7222344440 its reverse (444432227), we get a palindrome (7666776667).

The spelling of 7222344440 in words is "seven billion, two hundred twenty-two million, three hundred forty-four thousand, four hundred forty".