4421043440 has 120 divisors (see below), whose sum is σ = 11723343408. Its totient is φ = 1537592320.

The previous prime is 4421043439. The next prime is 4421043479. The reversal of 4421043440 is 443401244.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460772 + ... + 470268.

Almost surely, 2^4421043440 is an apocalyptic number.

4421043440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4421043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5861671704).

4421043440 is an abundant number, since it is smaller than the sum of its proper divisors (7302299968).

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

4421043440 is a wasteful number, since it uses less digits than its factorization.

4421043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9567 (or 9538 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 4421043440 is about 66490.9275014268. The cubic root of 4421043440 is about 1641.2507116037.

Adding to 4421043440 its reverse (443401244), we get a palindrome (4864444684).

It can be divided in two parts, 442104 and 3440, that added together give a palindrome (445544).

The spelling of 4421043440 in words is "four billion, four hundred twenty-one million, forty-three thousand, four hundred forty".