7222028280 has 32 divisors (see below), whose sum is σ = 21666085200. Its totient is φ = 1925874176.

The previous prime is 7222028273. The next prime is 7222028293. The reversal of 7222028280 is 828202227.

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, 30091665 + ... + 30091904.

Almost surely, 2^7222028280 is an apocalyptic number.

It is an amenable number.

7222028280 is an abundant number, since it is smaller than the sum of its proper divisors (14444056920).

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

7222028280 is a wasteful number, since it uses less digits than its factorization.

7222028280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60183583 (or 60183579 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 7222028280 is about 84982.5174962474. The cubic root of 7222028280 is about 1932.9460300931.

The spelling of 7222028280 in words is "seven billion, two hundred twenty-two million, twenty-eight thousand, two hundred eighty".