409061 has 4 divisors (see below), whose sum is σ = 412992. Its totient is φ = 405132.

The previous prime is 409043. The next prime is 409063. The reversal of 409061 is 160904.

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 409061 - 2⁶ = 408997 is a prime.

It is a pancake number, because a pancake can be divided into 409061 parts by 904 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1805 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (103248).

2⁴⁰⁹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

409061 is a deficient number, since it is larger than the sum of its proper divisors (3931).

409061 is a wasteful number, since it uses less digits than its factorization.

409061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 409061 is about 639.5787676276. The cubic root of 409061 is about 74.2328313042.

Adding to 409061 its reverse (160904), we get a palindrome (569965).

The spelling of 409061 in words is "four hundred nine thousand, sixty-one".