404143406 has 8 divisors (see below), whose sum is σ = 606351504. Its totient is φ = 202026240.

The previous prime is 404143367. The next prime is 404143417. The reversal of 404143406 is 604341404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×404143406² = 326663785226561672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10250 + ... + 30221.

It is an arithmetic number, because the mean of its divisors is an integer number (75793938).

Almost surely, 2^404143406 is an apocalyptic number.

404143406 is a deficient number, since it is larger than the sum of its proper divisors (202208098).

404143406 is a wasteful number, since it uses less digits than its factorization.

404143406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45466.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 404143406 is about 20103.3182833084. The cubic root of 404143406 is about 739.3416386958.

The spelling of 404143406 in words is "four hundred four million, one hundred forty-three thousand, four hundred six".