409065 has 8 divisors (see below), whose sum is σ = 654528. Its totient is φ = 218160.

The previous prime is 409063. The next prime is 409069. The reversal of 409065 is 560904.

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

It is not a de Polignac number, because 409065 - 2¹ = 409063 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (409063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13621 + ... + 13650.

It is an arithmetic number, because the mean of its divisors is an integer number (81816).

2⁴⁰⁹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

409065 is a deficient number, since it is larger than the sum of its proper divisors (245463).

409065 is a wasteful number, since it uses less digits than its factorization.

409065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 409065 is about 639.5818946781. The cubic root of 409065 is about 74.2330732652.

Adding to 409065 its reverse (560904), we get a palindrome (969969).

The spelling of 409065 in words is "four hundred nine thousand, sixty-five".