4221532752 has 80 divisors (see below), whose sum is σ = 11557510272. Its totient is φ = 1323212800.

The previous prime is 4221532751. The next prime is 4221532759. The reversal of 4221532752 is 2572351224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221532751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1505752 + ... + 1508552.

Almost surely, 2^4221532752 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 4221532752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5778755136).

4221532752 is an abundant number, since it is smaller than the sum of its proper divisors (7335977520).

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

4221532752 is a wasteful number, since it uses less digits than its factorization.

4221532752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676 (or 4670 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 4221532752 is about 64973.3233873718. The cubic root of 4221532752 is about 1616.1812139528.

Adding to 4221532752 its reverse (2572351224), we get a palindrome (6793883976).

The spelling of 4221532752 in words is "four billion, two hundred twenty-one million, five hundred thirty-two thousand, seven hundred fifty-two".