2043521544 has 64 divisors (see below), whose sum is σ = 5255144640. Its totient is φ = 661720320.

The previous prime is 2043521539. The next prime is 2043521563. The reversal of 2043521544 is 4451253402.

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, 727647 + ... + 730449.

It is an arithmetic number, because the mean of its divisors is an integer number (82111635).

Almost surely, 2^2043521544 is an apocalyptic number.

2043521544 is a gapful number since it is divisible by the number (24) 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 2043521544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2627572320).

2043521544 is an abundant number, since it is smaller than the sum of its proper divisors (3211623096).

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

2043521544 is a wasteful number, since it uses less digits than its factorization.

2043521544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2043521544 is about 45205.3265003141. The cubic root of 2043521544 is about 1268.9945012091.

Adding to 2043521544 its reverse (4451253402), we get a palindrome (6494774946).

The spelling of 2043521544 in words is "two billion, forty-three million, five hundred twenty-one thousand, five hundred forty-four".