404612011 has 4 divisors (see below), whose sum is σ = 425907400. Its totient is φ = 383316624.

The previous prime is 404612003. The next prime is 404612023. The reversal of 404612011 is 110216404.

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 404612011 - 2³ = 404612003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 21295369 = 404612011 / (4 + 0 + 4 + 6 + 1 + 2 + 0 + 1 + 1).

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 404612011.

It is not an unprimeable number, because it can be changed into a prime (404612051) 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, 10647666 + ... + 10647703.

It is an arithmetic number, because the mean of its divisors is an integer number (106476850).

Almost surely, 2^404612011 is an apocalyptic number.

404612011 is a deficient number, since it is larger than the sum of its proper divisors (21295389).

404612011 is a wasteful number, since it uses less digits than its factorization.

404612011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21295388.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 404612011 is about 20114.9698234922. The cubic root of 404612011 is about 739.6272843049.

Adding to 404612011 its reverse (110216404), we get a palindrome (514828415).

The spelling of 404612011 in words is "four hundred four million, six hundred twelve thousand, eleven".