404412611 has 4 divisors (see below), whose sum is σ = 421995792. Its totient is φ = 386829432.

The previous prime is 404412607. The next prime is 404412637. The reversal of 404412611 is 116214404.

It is a happy number.

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 404412611 - 2² = 404412607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 17583157 = 404412611 / (4 + 0 + 4 + 4 + 1 + 2 + 6 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404412601) 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 3 ways as a sum of consecutive naturals, for example, 8791556 + ... + 8791601.

It is an arithmetic number, because the mean of its divisors is an integer number (105498948).

Almost surely, 2^404412611 is an apocalyptic number.

404412611 is a deficient number, since it is larger than the sum of its proper divisors (17583181).

404412611 is a wasteful number, since it uses less digits than its factorization.

404412611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17583180.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 404412611 is about 20110.0127051178. The cubic root of 404412611 is about 739.5057638439.

The spelling of 404412611 in words is "four hundred four million, four hundred twelve thousand, six hundred eleven".