4040330421 has 4 divisors (see below), whose sum is σ = 5387107232. Its totient is φ = 2693553612.

The previous prime is 4040330387. The next prime is 4040330423. The reversal of 4040330421 is 1240330404.

4040330421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4040330421 - 2⁷ = 4040330293 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 (4040330423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673388401 + ... + 673388406.

It is an arithmetic number, because the mean of its divisors is an integer number (1346776808).

Almost surely, 2^4040330421 is an apocalyptic number.

It is an amenable number.

4040330421 is a deficient number, since it is larger than the sum of its proper divisors (1346776811).

4040330421 is a wasteful number, since it uses less digits than its factorization.

4040330421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346776810.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4040330421 is about 63563.5935186172. The cubic root of 4040330421 is about 1592.7182674065.

Adding to 4040330421 its reverse (1240330404), we get a palindrome (5280660825).

The spelling of 4040330421 in words is "four billion, forty million, three hundred thirty thousand, four hundred twenty-one".