3220731360 has 576 divisors, whose sum is σ = 14159867904. Its totient is φ = 646963200.

The previous prime is 3220731337. The next prime is 3220731373. The reversal of 3220731360 is 631370223.

It is a super-2 number, since 2×3220731360² = 20746220986574899200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3436812 + ... + 3437748.

It is an arithmetic number, because the mean of its divisors is an integer number (24583104).

Almost surely, 2^3220731360 is an apocalyptic number.

3220731360 is a gapful number since it is divisible by the number (30) 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 3220731360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7079933952).

3220731360 is an abundant number, since it is smaller than the sum of its proper divisors (10939136544).

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

3220731360 is a wasteful number, since it uses less digits than its factorization.

3220731360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 3220731360 is about 56751.4877338031. The cubic root of 3220731360 is about 1476.7880428426.

The spelling of 3220731360 in words is "three billion, two hundred twenty million, seven hundred thirty-one thousand, three hundred sixty".