7288322244 has 24 divisors (see below), whose sum is σ = 19435526208. Its totient is φ = 2082377760.

The previous prime is 7288322231. The next prime is 7288322257. The reversal of 7288322244 is 4422238827.

It is an interprime number because it is at equal distance from previous prime (7288322231) and next prime (7288322257).

It is a super-2 number, since 2×7288322244² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7288322196 and 7288322205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43382787 + ... + 43382954.

It is an arithmetic number, because the mean of its divisors is an integer number (809813592).

Almost surely, 2^7288322244 is an apocalyptic number.

It is an amenable number.

7288322244 is an abundant number, since it is smaller than the sum of its proper divisors (12147203964).

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

7288322244 is a wasteful number, since it uses less digits than its factorization.

7288322244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86765755 (or 86765753 counting only the distinct ones).

The product of its digits is 344064, while the sum is 42.

The square root of 7288322244 is about 85371.6712030402. The cubic root of 7288322244 is about 1938.8424599975.

The spelling of 7288322244 in words is "seven billion, two hundred eighty-eight million, three hundred twenty-two thousand, two hundred forty-four".