406260505 has 8 divisors (see below), whose sum is σ = 557157312. Its totient is φ = 278578608.

The previous prime is 406260493. The next prime is 406260521. The reversal of 406260505 is 505062604.

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

It is not a de Polignac number, because 406260505 - 2⁷ = 406260377 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5803687 + ... + 5803756.

It is an arithmetic number, because the mean of its divisors is an integer number (69644664).

Almost surely, 2^406260505 is an apocalyptic number.

It is an amenable number.

406260505 is a deficient number, since it is larger than the sum of its proper divisors (150896807).

406260505 is a wasteful number, since it uses less digits than its factorization.

406260505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11607455.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 406260505 is about 20155.9049660391. The cubic root of 406260505 is about 740.6304008460.

The spelling of 406260505 in words is "four hundred six million, two hundred sixty thousand, five hundred five".