7322224240 has 40 divisors (see below), whose sum is σ = 17027749440. Its totient is φ = 2928274176.

The previous prime is 7322224219. The next prime is 7322224253. The reversal of 7322224240 is 424222237.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×7322224240² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7322224199 and 7322224208.

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, 685017 + ... + 695623.

It is an arithmetic number, because the mean of its divisors is an integer number (425693736).

Almost surely, 2^7322224240 is an apocalyptic number.

It is an amenable number.

7322224240 is an abundant number, since it is smaller than the sum of its proper divisors (9705525200).

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

7322224240 is a wasteful number, since it uses less digits than its factorization.

7322224240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19249 (or 19243 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 7322224240 is about 85569.9961435082. The cubic root of 7322224240 is about 1941.8440184379.

Adding to 7322224240 its reverse (424222237), we get a palindrome (7746446477).

The spelling of 7322224240 in words is "seven billion, three hundred twenty-two million, two hundred twenty-four thousand, two hundred forty".