4001044421 has 8 divisors (see below), whose sum is σ = 4515285600. Its totient is φ = 3511888240.

The previous prime is 4001044381. The next prime is 4001044441. The reversal of 4001044421 is 1244401004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4001044421 - 2¹⁸ = 4000782277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4001044393 and 4001044402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001044441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6270911 + ... + 6271548.

It is an arithmetic number, because the mean of its divisors is an integer number (564410700).

Almost surely, 2^4001044421 is an apocalyptic number.

It is an amenable number.

4001044421 is a deficient number, since it is larger than the sum of its proper divisors (514241179).

4001044421 is a wasteful number, since it uses less digits than its factorization.

4001044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542499.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4001044421 is about 63253.8095374500. The cubic root of 4001044421 is about 1587.5391995281.

Adding to 4001044421 its reverse (1244401004), we get a palindrome (5245445425).

The spelling of 4001044421 in words is "four billion, one million, forty-four thousand, four hundred twenty-one".