4021440311 has 16 divisors (see below), whose sum is σ = 4821977088. Its totient is φ = 3281061600.

The previous prime is 4021440289. The next prime is 4021440331. The reversal of 4021440311 is 1130441204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021440311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021440331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138665 + ... + 165138.

It is an arithmetic number, because the mean of its divisors is an integer number (301373568).

Almost surely, 2^4021440311 is an apocalyptic number.

4021440311 is a deficient number, since it is larger than the sum of its proper divisors (800536777).

4021440311 is a wasteful number, since it uses less digits than its factorization.

4021440311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303902.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4021440311 is about 63414.8272172999. The cubic root of 4021440311 is about 1590.2321972773.

Adding to 4021440311 its reverse (1130441204), we get a palindrome (5151881515).

The spelling of 4021440311 in words is "four billion, twenty-one million, four hundred forty thousand, three hundred eleven".