406005105 has 16 divisors (see below), whose sum is σ = 708663744. Its totient is φ = 196850880.

The previous prime is 406005079. The next prime is 406005113. The reversal of 406005105 is 501500604.

It is a happy number.

It is not a de Polignac number, because 406005105 - 2⁵ = 406005073 is a prime.

It is a super-2 number, since 2×406005105² = 329680290572122050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230154 + ... + 1230483.

It is an arithmetic number, because the mean of its divisors is an integer number (44291484).

Almost surely, 2^406005105 is an apocalyptic number.

It is an amenable number.

406005105 is a deficient number, since it is larger than the sum of its proper divisors (302658639).

406005105 is a wasteful number, since it uses less digits than its factorization.

406005105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460656.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 406005105 is about 20149.5683576597. The cubic root of 406005105 is about 740.4751665777.

Adding to 406005105 its reverse (501500604), we get a palindrome (907505709).

The spelling of 406005105 in words is "four hundred six million, five thousand, one hundred five".