3223321440 has 48 divisors (see below), whose sum is σ = 10153464048. Its totient is φ = 859552256.

The previous prime is 3223321433. The next prime is 3223321459. The reversal of 3223321440 is 441233223.

3223321440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3223321440² = 20779602211127347200, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3223321440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3357147 + ... + 3358106.

It is an arithmetic number, because the mean of its divisors is an integer number (211530501).

Almost surely, 2^3223321440 is an apocalyptic number.

3223321440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3223321440 is an abundant number, since it is smaller than the sum of its proper divisors (6930142608).

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

3223321440 is a wasteful number, since it uses less digits than its factorization.

3223321440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715271 (or 6715263 counting only the distinct ones).

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

The square root of 3223321440 is about 56774.3026377251. The cubic root of 3223321440 is about 1477.1838095037.

Adding to 3223321440 its reverse (441233223), we get a palindrome (3664554663).

The spelling of 3223321440 in words is "three billion, two hundred twenty-three million, three hundred twenty-one thousand, four hundred forty".