409896 has 24 divisors (see below), whose sum is σ = 1110330. Its totient is φ = 136608.

The previous prime is 409891. The next prime is 409897. The reversal of 409896 is 698904.

409896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 396900 + 12996 = 630^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 409896.

It is not an unprimeable number, because it can be changed into a prime (409891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2775 + ... + 2918.

2⁴⁰⁹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

409896 is an abundant number, since it is smaller than the sum of its proper divisors (700434).

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

409896 is a wasteful number, since it uses less digits than its factorization.

409896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705 (or 5698 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 409896 is about 640.2312082365. The cubic root of 409896 is about 74.2833064872.

The spelling of 409896 in words is "four hundred nine thousand, eight hundred ninety-six".