406001006 has 8 divisors (see below), whose sum is σ = 641054280. Its totient is φ = 192316248.

The previous prime is 406001003. The next prime is 406001009. The reversal of 406001006 is 600100604.

It is an interprime number because it is at equal distance from previous prime (406001003) and next prime (406001009).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406001003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342081 + ... + 5342156.

It is an arithmetic number, because the mean of its divisors is an integer number (80131785).

Almost surely, 2^406001006 is an apocalyptic number.

406001006 is a deficient number, since it is larger than the sum of its proper divisors (235053274).

406001006 is a wasteful number, since it uses less digits than its factorization.

406001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684258.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 406001006 is about 20149.4666430653. The cubic root of 406001006 is about 740.4726746403.

The spelling of 406001006 in words is "four hundred six million, one thousand, six".