404340411 has 4 divisors (see below), whose sum is σ = 539120552. Its totient is φ = 269560272.

The previous prime is 404340397. The next prime is 404340449. The reversal of 404340411 is 114043404.

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

It is not a de Polignac number, because 404340411 - 2⁷ = 404340283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404344411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67390066 + ... + 67390071.

It is an arithmetic number, because the mean of its divisors is an integer number (134780138).

Almost surely, 2^404340411 is an apocalyptic number.

404340411 is a deficient number, since it is larger than the sum of its proper divisors (134780141).

404340411 is a wasteful number, since it uses less digits than its factorization.

404340411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134780140.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 404340411 is about 20108.2174993210. The cubic root of 404340411 is about 739.4617531047.

Adding to 404340411 its reverse (114043404), we get a palindrome (518383815).

It can be divided in two parts, 4043404 and 11, that multiplied together give a palindrome (44477444).

The spelling of 404340411 in words is "four hundred four million, three hundred forty thousand, four hundred eleven".