404001911 has 8 divisors (see below), whose sum is σ = 406531200. Its totient is φ = 401478840.

The previous prime is 404001847. The next prime is 404001943. The reversal of 404001911 is 119100404.

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 404001911 - 2⁶ = 404001847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214070 + ... + 215948.

It is an arithmetic number, because the mean of its divisors is an integer number (50816400).

Almost surely, 2^404001911 is an apocalyptic number.

404001911 is a deficient number, since it is larger than the sum of its proper divisors (2529289).

404001911 is a wasteful number, since it uses less digits than its factorization.

404001911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 404001911 is about 20099.7987800873. The cubic root of 404001911 is about 739.2553447758.

The spelling of 404001911 in words is "four hundred four million, one thousand, nine hundred eleven".