409016 has 32 divisors (see below), whose sum is σ = 831600. Its totient is φ = 188160.

The previous prime is 409007. The next prime is 409021. The reversal of 409016 is 610904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9491 + ... + 9533.

2⁴⁰⁹⁰¹⁶ is an apocalyptic number.

It is an amenable number.

409016 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

409016 is a wasteful number, since it uses less digits than its factorization.

409016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 409016 is about 639.5435872558. The cubic root of 409016 is about 74.2301091349.

The spelling of 409016 in words is "four hundred nine thousand, sixteen".