3223223440 has 20 divisors (see below), whose sum is σ = 7493994684. Its totient is φ = 1289289344.

The previous prime is 3223223431. The next prime is 3223223453. The reversal of 3223223440 is 443223223.

It can be written as a sum of positive squares in 2 ways, for example, as 2479243264 + 743980176 = 49792^2 + 27276^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20145067 + ... + 20145226.

Almost surely, 2^3223223440 is an apocalyptic number.

It is an amenable number.

3223223440 is an abundant number, since it is smaller than the sum of its proper divisors (4270771244).

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

3223223440 is a wasteful number, since it uses less digits than its factorization.

3223223440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40290306 (or 40290300 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 3223223440 is about 56773.4395646415. The cubic root of 3223223440 is about 1477.1688388714.

Adding to 3223223440 its reverse (443223223), we get a palindrome (3666446663).

The spelling of 3223223440 in words is "three billion, two hundred twenty-three million, two hundred twenty-three thousand, four hundred forty".