3222621752 has 64 divisors (see below), whose sum is σ = 7278724800. Its totient is φ = 1308303360.

The previous prime is 3222621739. The next prime is 3222621761. The reversal of 3222621752 is 2571262223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67352 + ... + 104792.

It is an arithmetic number, because the mean of its divisors is an integer number (113730075).

Almost surely, 2^3222621752 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 3222621752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3639362400).

3222621752 is an abundant number, since it is smaller than the sum of its proper divisors (4056103048).

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

3222621752 is a wasteful number, since it uses less digits than its factorization.

3222621752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37536 (or 37532 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 3222621752 is about 56768.1402901310. The cubic root of 3222621752 is about 1477.0769174257.

Adding to 3222621752 its reverse (2571262223), we get a palindrome (5793883975).

The spelling of 3222621752 in words is "three billion, two hundred twenty-two million, six hundred twenty-one thousand, seven hundred fifty-two".