404144011 has 8 divisors (see below), whose sum is σ = 414344448. Its totient is φ = 393960000.

The previous prime is 404143991. The next prime is 404144033. The reversal of 404144011 is 110441404.

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 404144011 - 2¹³ = 404135819 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 404144011.

It is not an unprimeable number, because it can be changed into a prime (404148011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56961 + ... + 63661.

It is an arithmetic number, because the mean of its divisors is an integer number (51793056).

Almost surely, 2^404144011 is an apocalyptic number.

404144011 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

404144011 is a deficient number, since it is larger than the sum of its proper divisors (10200437).

404144011 is a wasteful number, since it uses less digits than its factorization.

404144011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 404144011 is about 20103.3333305698. Note that the first 5 decimals coincide. The cubic root of 404144011 is about 739.3420076254.

Adding to 404144011 its reverse (110441404), we get a palindrome (514585415).

The spelling of 404144011 in words is "four hundred four million, one hundred forty-four thousand, eleven".