7222352280 has 256 divisors, whose sum is σ = 25723353600. Its totient is φ = 1599160320.

The previous prime is 7222352261. The next prime is 7222352281. The reversal of 7222352280 is 822532227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222352281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1662351 + ... + 1666689.

It is an arithmetic number, because the mean of its divisors is an integer number (100481850).

Almost surely, 2^7222352280 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 7222352280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12861676800).

7222352280 is an abundant number, since it is smaller than the sum of its proper divisors (18501001320).

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

7222352280 is a wasteful number, since it uses less digits than its factorization.

7222352280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474 (or 4470 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 7222352280 is about 84984.4237492966. The cubic root of 7222352280 is about 1932.9749354146.

The spelling of 7222352280 in words is "seven billion, two hundred twenty-two million, three hundred fifty-two thousand, two hundred eighty".