2021544448 has 160 divisors (see below), whose sum is σ = 5147670528. Its totient is φ = 770150400.

The previous prime is 2021544389. The next prime is 2021544457. The reversal of 2021544448 is 8444451202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852383 + ... + 1853473.

Almost surely, 2^2021544448 is an apocalyptic number.

2021544448 is a gapful number since it is divisible by the number (28) 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 2021544448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2573835264).

2021544448 is an abundant number, since it is smaller than the sum of its proper divisors (3126126080).

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

2021544448 is a wasteful number, since it uses less digits than its factorization.

2021544448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 34.

The square root of 2021544448 is about 44961.5885840347. The cubic root of 2021544448 is about 1264.4289523148.

It can be divided in two parts, 202154 and 4448, that added together give a palindrome (206602).

The spelling of 2021544448 in words is "two billion, twenty-one million, five hundred forty-four thousand, four hundred forty-eight".