404478811 has 8 divisors (see below), whose sum is σ = 441496944. Its totient is φ = 367501920.

The previous prime is 404478797. The next prime is 404478847. The reversal of 404478811 is 118874404.

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 404478811 - 2⁵ = 404478779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404470811) 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 7 ways as a sum of consecutive naturals, for example, 12385 + ... + 31021.

It is an arithmetic number, because the mean of its divisors is an integer number (55187118).

Almost surely, 2^404478811 is an apocalyptic number.

404478811 is a deficient number, since it is larger than the sum of its proper divisors (37018133).

404478811 is a wasteful number, since it uses less digits than its factorization.

404478811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 404478811 is about 20111.6585840154. The cubic root of 404478811 is about 739.5461125778.

The spelling of 404478811 in words is "four hundred four million, four hundred seventy-eight thousand, eight hundred eleven".