409466 has 4 divisors (see below), whose sum is σ = 614202. Its totient is φ = 204732.

The previous prime is 409463. The next prime is 409471. The reversal of 409466 is 664904.

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

It can be written as a sum of positive squares in only one way, i.e., 403225 + 6241 = 635^2 + 79^2 .

It is not an unprimeable number, because it can be changed into a prime (409463) by changing a digit.

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 as a sum of consecutive naturals, namely, 102365 + ... + 102368.

2⁴⁰⁹⁴⁶⁶ is an apocalyptic number.

409466 is a deficient number, since it is larger than the sum of its proper divisors (204736).

409466 is a wasteful number, since it uses less digits than its factorization.

409466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204735.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 409466 is about 639.8953039365. The cubic root of 409466 is about 74.2573218490.

The spelling of 409466 in words is "four hundred nine thousand, four hundred sixty-six".