409796 has 12 divisors (see below), whose sum is σ = 731052. Its totient is φ = 200928.

The previous prime is 409781. The next prime is 409813. The reversal of 409796 is 697904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 287296 + 122500 = 536^2 + 350^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

409796 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (60921).

2⁴⁰⁹⁷⁹⁶ is an apocalyptic number.

It is an amenable number.

409796 is a deficient number, since it is larger than the sum of its proper divisors (321256).

409796 is a wasteful number, since it uses less digits than its factorization.

409796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 409796 is about 640.1531066862. The cubic root of 409796 is about 74.2772651704.

The spelling of 409796 in words is "four hundred nine thousand, seven hundred ninety-six".