409594 has 4 divisors (see below), whose sum is σ = 614394. Its totient is φ = 204796.

The previous prime is 409589. The next prime is 409597. The reversal of 409594 is 495904.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 344569 + 65025 = 587^2 + 255^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (409597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102397 + ... + 102400.

2⁴⁰⁹⁵⁹⁴ is an apocalyptic number.

409594 is a deficient number, since it is larger than the sum of its proper divisors (204800).

409594 is a wasteful number, since it uses less digits than its factorization.

409594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204799.

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

The square root of 409594 is about 639.9953124828. The cubic root of 409594 is about 74.2650587119.

The spelling of 409594 in words is "four hundred nine thousand, five hundred ninety-four".