4421332520 has 32 divisors (see below), whose sum is σ = 10852362720. Its totient is φ = 1607757120.

The previous prime is 4421332507. The next prime is 4421332549. The reversal of 4421332520 is 252331244.

It is a self number, because there is not a number n which added to its sum of digits gives 4421332520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5023802 + ... + 5024681.

It is an arithmetic number, because the mean of its divisors is an integer number (339136335).

Almost surely, 2^4421332520 is an apocalyptic number.

4421332520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4421332520 is an abundant number, since it is smaller than the sum of its proper divisors (6431030200).

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

4421332520 is a wasteful number, since it uses less digits than its factorization.

4421332520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048505 (or 10048501 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 4421332520 is about 66493.1012962999. The cubic root of 4421332520 is about 1641.2864831300.

Adding to 4421332520 its reverse (252331244), we get a palindrome (4673663764).

The spelling of 4421332520 in words is "four billion, four hundred twenty-one million, three hundred thirty-two thousand, five hundred twenty".