2406205 has 8 divisors (see below), whose sum is σ = 2899800. Its totient is φ = 1916736.

The previous prime is 2406199. The next prime is 2406227. The reversal of 2406205 is 5026042.

It can be written as a sum of positive squares in 4 ways, for example, as 257049 + 2149156 = 507^2 + 1466^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2406205 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 4⁹ + 0 + 6⁶ + 2²¹ + 0 + 5³ .

2406205 is a lucky number.

It is a congruent 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, 451 + ... + 2239.

It is an arithmetic number, because the mean of its divisors is an integer number (362475).

2^2406205 is an apocalyptic number.

It is an amenable number.

2406205 is a deficient number, since it is larger than the sum of its proper divisors (493595).

2406205 is a wasteful number, since it uses less digits than its factorization.

2406205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2406205 is about 1551.1947008677. The cubic root of 2406205 is about 134.0018749274.

The spelling of 2406205 in words is "two million, four hundred six thousand, two hundred five".