4040236321 has 4 divisors (see below), whose sum is σ = 4407530544. Its totient is φ = 3672942100.

The previous prime is 4040236313. The next prime is 4040236351. The reversal of 4040236321 is 1236320404.

4040236321 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 4040236321 - 2³ = 4040236313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040236351) 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, 183647095 + ... + 183647116.

It is an arithmetic number, because the mean of its divisors is an integer number (1101882636).

Almost surely, 2^4040236321 is an apocalyptic number.

It is an amenable number.

4040236321 is a deficient number, since it is larger than the sum of its proper divisors (367294223).

4040236321 is a wasteful number, since it uses less digits than its factorization.

4040236321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367294222.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4040236321 is about 63562.8533107191. The cubic root of 4040236321 is about 1592.7059024151.

Adding to 4040236321 its reverse (1236320404), we get a palindrome (5276556725).

The spelling of 4040236321 in words is "four billion, forty million, two hundred thirty-six thousand, three hundred twenty-one".