409459 has 4 divisors (see below), whose sum is σ = 411400. Its totient is φ = 407520.

The previous prime is 409441. The next prime is 409463. The reversal of 409459 is 954904.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409459 - 2¹⁷ = 278387 is a prime.

It is an Ulam number.

It is a Duffinian number.

409459 is a lucky number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 409459.

It is not an unprimeable number, because it can be changed into a prime (409429) 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 3 ways as a sum of consecutive naturals, for example, 609 + ... + 1090.

It is an arithmetic number, because the mean of its divisors is an integer number (102850).

2⁴⁰⁹⁴⁵⁹ is an apocalyptic number.

409459 is a deficient number, since it is larger than the sum of its proper divisors (1941).

409459 is a wasteful number, since it uses less digits than its factorization.

409459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 409459 is about 639.8898342684. The cubic root of 409459 is about 74.2568986928.

It can be divided in two parts, 409 and 459, that added together give a palindrome (868).

The spelling of 409459 in words is "four hundred nine thousand, four hundred fifty-nine".