7221360280 has 16 divisors (see below), whose sum is σ = 16248060720. Its totient is φ = 2888544096.

The previous prime is 7221360269. The next prime is 7221360319. The reversal of 7221360280 is 820631227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90266964 + ... + 90267043.

It is an arithmetic number, because the mean of its divisors is an integer number (1015503795).

Almost surely, 2^7221360280 is an apocalyptic number.

It is an amenable number.

7221360280 is an abundant number, since it is smaller than the sum of its proper divisors (9026700440).

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

7221360280 is a wasteful number, since it uses less digits than its factorization.

7221360280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180534018 (or 180534014 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 7221360280 is about 84978.5871852433. The cubic root of 7221360280 is about 1932.8864324422.

The spelling of 7221360280 in words is "seven billion, two hundred twenty-one million, three hundred sixty thousand, two hundred eighty".