406040006 has 8 divisors (see below), whose sum is σ = 619383240. Its totient is φ = 199578928.

The previous prime is 406039993. The next prime is 406040021. The reversal of 406040006 is 600040604.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 406040006.

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, 1720391 + ... + 1720626.

It is an arithmetic number, because the mean of its divisors is an integer number (77422905).

Almost surely, 2^406040006 is an apocalyptic number.

406040006 is a deficient number, since it is larger than the sum of its proper divisors (213343234).

406040006 is a wasteful number, since it uses less digits than its factorization.

406040006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441078.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 406040006 is about 20150.4343873774. The cubic root of 406040006 is about 740.4963835386.

The spelling of 406040006 in words is "four hundred six million, forty thousand, six".