7228533312 has 840 divisors, whose sum is σ = 29430878400. Its totient is φ = 1724405760.

The previous prime is 7228533289. The next prime is 7228533317. The reversal of 7228533312 is 2133358227.

7228533312 is a `hidden beast` number, since 72 + 28 + 533 + 31 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (7228533317) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 36324189 + ... + 36324387.

It is an arithmetic number, because the mean of its divisors is an integer number (35036760).

Almost surely, 2^7228533312 is an apocalyptic number.

7228533312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7228533312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14715439200).

7228533312 is an abundant number, since it is smaller than the sum of its proper divisors (22202345088).

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

7228533312 is a wasteful number, since it uses less digits than its factorization.

7228533312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 235 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 7228533312 is about 85020.7816477830. The cubic root of 7228533312 is about 1933.5262042490.

The spelling of 7228533312 in words is "seven billion, two hundred twenty-eight million, five hundred thirty-three thousand, three hundred twelve".