4000804401 has 16 divisors (see below), whose sum is σ = 5852998080. Its totient is φ = 2410710720.

The previous prime is 4000804399. The next prime is 4000804439. The reversal of 4000804401 is 1044080004.

It is not a de Polignac number, because 4000804401 - 2¹ = 4000804399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4000804601) 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, 344686 + ... + 356103.

It is an arithmetic number, because the mean of its divisors is an integer number (365812380).

Almost surely, 2^4000804401 is an apocalyptic number.

It is an amenable number.

4000804401 is a deficient number, since it is larger than the sum of its proper divisors (1852193679).

4000804401 is a wasteful number, since it uses less digits than its factorization.

4000804401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700976.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4000804401 is about 63251.9122319634. The cubic root of 4000804401 is about 1587.5074537522.

Adding to 4000804401 its reverse (1044080004), we get a palindrome (5044884405).

The spelling of 4000804401 in words is "four billion, eight hundred four thousand, four hundred one".