406806006 has 16 divisors (see below), whose sum is σ = 822754800. Its totient is φ = 134078208.

The previous prime is 406805999. The next prime is 406806013. The reversal of 406806006 is 600608604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (406805999) and next prime (406806013).

It is a super-2 number, since 2×406806006² = 330982253035344072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380371 + ... + 381438.

It is an arithmetic number, because the mean of its divisors is an integer number (51422175).

Almost surely, 2^406806006 is an apocalyptic number.

406806006 is an abundant number, since it is smaller than the sum of its proper divisors (415948794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406806006 is a wasteful number, since it uses less digits than its factorization.

406806006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761903.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 406806006 is about 20169.4324659867. The cubic root of 406806006 is about 740.9617431955.

The spelling of 406806006 in words is "four hundred six million, eight hundred six thousand, six".