409908 has 12 divisors (see below), whose sum is σ = 956480. Its totient is φ = 136632.

The previous prime is 409901. The next prime is 409909. The reversal of 409908 is 809904.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17068 + ... + 17091.

2⁴⁰⁹⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

409908 is an abundant number, since it is smaller than the sum of its proper divisors (546572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409908 is a wasteful number, since it uses less digits than its factorization.

409908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34166 (or 34164 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 409908 is about 640.2405797823. The cubic root of 409908 is about 74.2840313792.

The spelling of 409908 in words is "four hundred nine thousand, nine hundred eight".