406612005 has 8 divisors (see below), whose sum is σ = 650579232. Its totient is φ = 216859728.

The previous prime is 406611979. The next prime is 406612021. The reversal of 406612005 is 500216604.

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

It is not a de Polignac number, because 406612005 - 2⁹ = 406611493 is a prime.

It is a super-2 number, since 2×406612005² = 330666645220240050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13553719 + ... + 13553748.

It is an arithmetic number, because the mean of its divisors is an integer number (81322404).

Almost surely, 2^406612005 is an apocalyptic number.

It is an amenable number.

406612005 is a deficient number, since it is larger than the sum of its proper divisors (243967227).

406612005 is a wasteful number, since it uses less digits than its factorization.

406612005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27107475.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 406612005 is about 20164.6226099077. The cubic root of 406612005 is about 740.8439391533.

Adding to 406612005 its reverse (500216604), we get a palindrome (906828609).

The spelling of 406612005 in words is "four hundred six million, six hundred twelve thousand, five".