7221323760 has 160 divisors (see below), whose sum is σ = 25811205120. Its totient is φ = 1635938304.

The previous prime is 7221323743. The next prime is 7221323771. The reversal of 7221323760 is 673231227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170821 + ... + 208859.

It is an arithmetic number, because the mean of its divisors is an integer number (161320032).

Almost surely, 2^7221323760 is an apocalyptic number.

7221323760 is a gapful number since it is divisible by the number (70) 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 7221323760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12905602560).

7221323760 is an abundant number, since it is smaller than the sum of its proper divisors (18589881360).

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

7221323760 is a wasteful number, since it uses less digits than its factorization.

7221323760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38175 (or 38169 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 7221323760 is about 84978.3723073112. The cubic root of 7221323760 is about 1932.8831740934.

Adding to 7221323760 its reverse (673231227), we get a palindrome (7894554987).

The spelling of 7221323760 in words is "seven billion, two hundred twenty-one million, three hundred twenty-three thousand, seven hundred sixty".