4020404403 has 4 divisors (see below), whose sum is σ = 5360539208. Its totient is φ = 2680269600.

The previous prime is 4020404383. The next prime is 4020404413. The reversal of 4020404403 is 3044040204.

4020404403 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.

It is not a de Polignac number, because 4020404403 - 2⁵ = 4020404371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4020404403.

It is not an unprimeable number, because it can be changed into a prime (4020404413) 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, 670067398 + ... + 670067403.

It is an arithmetic number, because the mean of its divisors is an integer number (1340134802).

Almost surely, 2^4020404403 is an apocalyptic number.

4020404403 is a deficient number, since it is larger than the sum of its proper divisors (1340134805).

4020404403 is a wasteful number, since it uses less digits than its factorization.

4020404403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340134804.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 4020404403 is about 63406.6589799526. The cubic root of 4020404403 is about 1590.0956395934.

Adding to 4020404403 its reverse (3044040204), we get a palindrome (7064444607).

The spelling of 4020404403 in words is "four billion, twenty million, four hundred four thousand, four hundred three".