409366 has 8 divisors (see below), whose sum is σ = 617760. Its totient is φ = 203448.

The previous prime is 409351. The next prime is 409369. The reversal of 409366 is 663904.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409369) by changing a digit.

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, 126 + ... + 913.

It is an arithmetic number, because the mean of its divisors is an integer number (77220).

2⁴⁰⁹³⁶⁶ is an apocalyptic number.

409366 is a deficient number, since it is larger than the sum of its proper divisors (208394).

409366 is a wasteful number, since it uses less digits than its factorization.

409366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 409366 is about 639.8171613828. The cubic root of 409366 is about 74.2512763029.

The spelling of 409366 in words is "four hundred nine thousand, three hundred sixty-six".