3213322440 has 32 divisors (see below), whose sum is σ = 9639967680. Its totient is φ = 856885952.

The previous prime is 3213322423. The next prime is 3213322517. The reversal of 3213322440 is 442233123.

It is a super-2 number, since 2×3213322440² = 20650882206815107200, 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 3213322440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13388724 + ... + 13388963.

It is an arithmetic number, because the mean of its divisors is an integer number (301248990).

Almost surely, 2^3213322440 is an apocalyptic number.

3213322440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213322440 is an abundant number, since it is smaller than the sum of its proper divisors (6426645240).

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

3213322440 is a wasteful number, since it uses less digits than its factorization.

3213322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26777701 (or 26777697 counting only the distinct ones).

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

The square root of 3213322440 is about 56686.1750341298. The cubic root of 3213322440 is about 1475.6547800530.

Adding to 3213322440 its reverse (442233123), we get a palindrome (3655555563).

The spelling of 3213322440 in words is "three billion, two hundred thirteen million, three hundred twenty-two thousand, four hundred forty".