409465 has 8 divisors (see below), whose sum is σ = 561600.
Its totient is φ = 280752.
The previous prime is 409463. The next prime is 409471. The reversal of 409465 is 564904.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 409465 - 21 = 409463 is a prime.
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 in 7 ways as a sum of consecutive naturals, for example, 5815 + ... + 5884.
It is an arithmetic number, because the mean of its divisors is an integer number (70200).
2409465 is an apocalyptic number.
It is an amenable number.
409465 is a deficient number, since it is larger than the sum of its proper divisors (152135).
409465 is a wasteful number, since it uses less digits than its factorization.
409465 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11711.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 409465 is about 639.8945225582.
The cubic root of 409465 is about 74.2572613984.
The spelling of 409465 in words is "four hundred nine thousand, four hundred sixty-five".