409126 has 4 divisors (see below), whose sum is σ = 613692. Its totient is φ = 204562.

The previous prime is 409121. The next prime is 409153. The reversal of 409126 is 621904.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 409097 and 409106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102280 + ... + 102283.

It is an arithmetic number, because the mean of its divisors is an integer number (153423).

2⁴⁰⁹¹²⁶ is an apocalyptic number.

409126 is a deficient number, since it is larger than the sum of its proper divisors (204566).

409126 is a wasteful number, since it uses less digits than its factorization.

409126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204565.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 409126 is about 639.6295803041. The cubic root of 409126 is about 74.2367629741.

It can be divided in two parts, 409 and 126, that added together give a palindrome (535).

The spelling of 409126 in words is "four hundred nine thousand, one hundred twenty-six".