7321443228 has 336 divisors, whose sum is σ = 22328678400. Its totient is φ = 2078524800.

The previous prime is 7321443187. The next prime is 7321443251. The reversal of 7321443228 is 8223441237.

It is a happy number.

7321443228 is a `hidden beast` number, since 7 + 3 + 214 + 432 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7321443192 and 7321443201.

It is a congruent number.

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 111 ways as a sum of consecutive naturals, for example, 36791073 + ... + 36791271.

It is an arithmetic number, because the mean of its divisors is an integer number (66454400).

Almost surely, 2^7321443228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7321443228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11164339200).

7321443228 is an abundant number, since it is smaller than the sum of its proper divisors (15007235172).

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

7321443228 is a wasteful number, since it uses less digits than its factorization.

7321443228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 283 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 7321443228 is about 85565.4324362356. The cubic root of 7321443228 is about 1941.7749748724.

The spelling of 7321443228 in words is "seven billion, three hundred twenty-one million, four hundred forty-three thousand, two hundred twenty-eight".