409361 has 4 divisors (see below), whose sum is σ = 412224. Its totient is φ = 406500.

The previous prime is 409351. The next prime is 409369. The reversal of 409361 is 163904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409361 - 2¹⁰ = 408337 is a prime.

It is a Duffinian number.

It is a Curzon number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (103056).

2⁴⁰⁹³⁶¹ is an apocalyptic number.

It is an amenable number.

409361 is a deficient number, since it is larger than the sum of its proper divisors (2863).

409361 is a wasteful number, since it uses less digits than its factorization.

409361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 409361 is about 639.8132540046. The cubic root of 409361 is about 74.2509739997.

The spelling of 409361 in words is "four hundred nine thousand, three hundred sixty-one".