3221400340 has 96 divisors (see below), whose sum is σ = 7193733120. Its totient is φ = 1209753600.

The previous prime is 3221400337. The next prime is 3221400349. The reversal of 3221400340 is 430041223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221400349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8973081 + ... + 8973439.

It is an arithmetic number, because the mean of its divisors is an integer number (74934720).

Almost surely, 2^3221400340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221400340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3596866560).

3221400340 is an abundant number, since it is smaller than the sum of its proper divisors (3972332780).

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

3221400340 is a wasteful number, since it uses less digits than its factorization.

3221400340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3221400340 is about 56757.3813701795. The cubic root of 3221400340 is about 1476.8902839343.

Adding to 3221400340 its reverse (430041223), we get a palindrome (3651441563).

The spelling of 3221400340 in words is "three billion, two hundred twenty-one million, four hundred thousand, three hundred forty".