404010011 has 4 divisors (see below), whose sum is σ = 417042624. Its totient is φ = 390977400.

The previous prime is 404010001. The next prime is 404010031. The reversal of 404010011 is 110010404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404010011 - 2¹⁰ = 404008987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404009974 and 404010001.

It is not an unprimeable number, because it can be changed into a prime (404010001) 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, 6516260 + ... + 6516321.

It is an arithmetic number, because the mean of its divisors is an integer number (104260656).

Almost surely, 2^404010011 is an apocalyptic number.

404010011 is a deficient number, since it is larger than the sum of its proper divisors (13032613).

404010011 is a wasteful number, since it uses less digits than its factorization.

404010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032612.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 404010011 is about 20100.0002736318. Note that the first 3 decimals coincide. The cubic root of 404010011 is about 739.2602852873.

Subtracting from 404010011 its sum of digits (11), we obtain a square (404010000 = 20100²).

Adding to 404010011 its reverse (110010404), we get a palindrome (514020415).

The spelling of 404010011 in words is "four hundred four million, ten thousand, eleven".