3443221320 has 512 divisors, whose sum is σ = 13436928000. Its totient is φ = 685301760.

The previous prime is 3443221303. The next prime is 3443221337. The reversal of 3443221320 is 231223443.

3443221320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3443221303) and next prime (3443221337).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38687836 + ... + 38687924.

It is an arithmetic number, because the mean of its divisors is an integer number (26244000).

Almost surely, 2^3443221320 is an apocalyptic number.

3443221320 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 3443221320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6718464000).

3443221320 is an abundant number, since it is smaller than the sum of its proper divisors (9993706680).

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

3443221320 is a wasteful number, since it uses less digits than its factorization.

3443221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3443221320 is about 58678.9682935888. The cubic root of 3443221320 is about 1510.0395177003.

Adding to 3443221320 its reverse (231223443), we get a palindrome (3674444763).

The spelling of 3443221320 in words is "three billion, four hundred forty-three million, two hundred twenty-one thousand, three hundred twenty".