4440521020 has 48 divisors (see below), whose sum is σ = 10098617760. Its totient is φ = 1630400256.

The previous prime is 4440520963. The next prime is 4440521077. The reversal of 4440521020 is 201250444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4440520963) and next prime (4440521077).

It is a junction number, because it is equal to n+sod(n) for n = 4440520982 and 4440521000.

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, 1167 + ... + 94246.

It is an arithmetic number, because the mean of its divisors is an integer number (210387870).

Almost surely, 2^4440521020 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 4440521020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5049308880).

4440521020 is an abundant number, since it is smaller than the sum of its proper divisors (5658096740).

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

4440521020 is a wasteful number, since it uses less digits than its factorization.

4440521020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95614 (or 95612 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4440521020 is about 66637.2344864341. The cubic root of 4440521020 is about 1643.6574406188.

Adding to 4440521020 its reverse (201250444), we get a palindrome (4641771464).

The spelling of 4440521020 in words is "four billion, four hundred forty million, five hundred twenty-one thousand, twenty".