3222115644 has 96 divisors (see below), whose sum is σ = 8665574400. Its totient is φ = 922620160.

The previous prime is 3222115607. The next prime is 3222115651. The reversal of 3222115644 is 4465112223.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 170962 + ... + 188870.

It is an arithmetic number, because the mean of its divisors is an integer number (90266400).

Almost surely, 2^3222115644 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 3222115644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4332787200).

3222115644 is an abundant number, since it is smaller than the sum of its proper divisors (5443458756).

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

3222115644 is a wasteful number, since it uses less digits than its factorization.

3222115644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18003 (or 18001 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 3222115644 is about 56763.6824386861. The cubic root of 3222115644 is about 1476.9995891260. Note that the first 3 decimals are identical.

Adding to 3222115644 its reverse (4465112223), we get a palindrome (7687227867).

The spelling of 3222115644 in words is "three billion, two hundred twenty-two million, one hundred fifteen thousand, six hundred forty-four".