3220351344 has 600 divisors, whose sum is σ = 12161342160. Its totient is φ = 815173632.

The previous prime is 3220351307. The next prime is 3220351373. The reversal of 3220351344 is 4431530223.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 119 ways as a sum of consecutive naturals, for example, 20511714 + ... + 20511870.

Almost surely, 2^3220351344 is an apocalyptic number.

3220351344 is a gapful number since it is divisible by the number (34) 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 3220351344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6080671080).

3220351344 is an abundant number, since it is smaller than the sum of its proper divisors (8940990816).

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

3220351344 is a wasteful number, since it uses less digits than its factorization.

3220351344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 3220351344 is about 56748.1395642183. The cubic root of 3220351344 is about 1476.7299581929.

Adding to 3220351344 its reverse (4431530223), we get a palindrome (7651881567).

The spelling of 3220351344 in words is "three billion, two hundred twenty million, three hundred fifty-one thousand, three hundred forty-four".