406718485 has 4 divisors (see below), whose sum is σ = 488062188. Its totient is φ = 325374784.

The previous prime is 406718479. The next prime is 406718491. The reversal of 406718485 is 584817604.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (406718479) and next prime (406718491).

It can be written as a sum of positive squares in 2 ways, for example, as 188210961 + 218507524 = 13719^2 + 14782^2 .

It is a cyclic number.

It is not a de Polignac number, because 406718485 - 2¹⁵ = 406685717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40671844 + ... + 40671853.

It is an arithmetic number, because the mean of its divisors is an integer number (122015547).

Almost surely, 2^406718485 is an apocalyptic number.

It is an amenable number.

406718485 is a deficient number, since it is larger than the sum of its proper divisors (81343703).

406718485 is an equidigital number, since it uses as much as digits as its factorization.

406718485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81343702.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 406718485 is about 20167.2627046905. The cubic root of 406718485 is about 740.9086020889.

The spelling of 406718485 in words is "four hundred six million, seven hundred eighteen thousand, four hundred eighty-five".