409156 has 24 divisors (see below), whose sum is σ = 828576. Its totient is φ = 174720.

The previous prime is 409153. The next prime is 409163. The reversal of 409156 is 651904.

It is a self number, because there is not a number n which added to its sum of digits gives 409156.

It is not an unprimeable number, because it can be changed into a prime (409153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 1021.

It is an arithmetic number, because the mean of its divisors is an integer number (34524).

2⁴⁰⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

409156 is an abundant number, since it is smaller than the sum of its proper divisors (419420).

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

409156 is a wasteful number, since it uses less digits than its factorization.

409156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 409156 is about 639.6530309472. The cubic root of 409156 is about 74.2385774506.

It can be divided in two parts, 409 and 156, that added together give a palindrome (565).

The spelling of 409156 in words is "four hundred nine thousand, one hundred fifty-six".