4044121000 has 48 divisors (see below), whose sum is σ = 9467951220. Its totient is φ = 1616844000.

The previous prime is 4044120989. The next prime is 4044121057. The reversal of 4044121000 is 1214404.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 2733825796 + 1310295204 = 52286^2 + 36198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2009995 + ... + 2012005.

Almost surely, 2^4044121000 is an apocalyptic number.

4044121000 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 4044121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4733975610).

4044121000 is an abundant number, since it is smaller than the sum of its proper divisors (5423830220).

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

4044121000 is an frugal number, since it uses more digits than its factorization.

4044121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4044121000 is about 63593.4037459861. The cubic root of 4044121000 is about 1593.2162000612.

Adding to 4044121000 its reverse (1214404), we get a palindrome (4045335404).

The spelling of 4044121000 in words is "four billion, forty-four million, one hundred twenty-one thousand".