4044542421 has 8 divisors (see below), whose sum is σ = 5394842464. Its totient is φ = 2695302000.

The previous prime is 4044542419. The next prime is 4044542423. The reversal of 4044542421 is 1242454404.

4044542421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4044542419) and next prime (4044542423).

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

It is not a de Polignac number, because 4044542421 - 2¹ = 4044542419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044542423) 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, 255955 + ... + 271296.

It is an arithmetic number, because the mean of its divisors is an integer number (674355308).

Almost surely, 2^4044542421 is an apocalyptic number.

It is an amenable number.

4044542421 is a deficient number, since it is larger than the sum of its proper divisors (1350300043).

4044542421 is a wasteful number, since it uses less digits than its factorization.

4044542421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529811.

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 4044542421 is about 63596.7170614962. The cubic root of 4044542421 is about 1593.2715389465.

Adding to 4044542421 its reverse (1242454404), we get a palindrome (5286996825).

The spelling of 4044542421 in words is "four billion, forty-four million, five hundred forty-two thousand, four hundred twenty-one".