4000404405 has 8 divisors (see below), whose sum is σ = 6400647072. Its totient is φ = 2133549008.

The previous prime is 4000404383. The next prime is 4000404427. The reversal of 4000404405 is 5044040004.

It is an interprime number because it is at equal distance from previous prime (4000404383) and next prime (4000404427).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4000404405 - 2⁶ = 4000404341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133346799 + ... + 133346828.

It is an arithmetic number, because the mean of its divisors is an integer number (800080884).

Almost surely, 2^4000404405 is an apocalyptic number.

It is an amenable number.

4000404405 is a deficient number, since it is larger than the sum of its proper divisors (2400242667).

4000404405 is a wasteful number, since it uses less digits than its factorization.

4000404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266693635.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 4000404405 is about 63248.7502248068. The cubic root of 4000404405 is about 1587.4545462423.

Adding to 4000404405 its reverse (5044040004), we get a palindrome (9044444409).

The spelling of 4000404405 in words is "four billion, four hundred four thousand, four hundred five".