411820 has 24 divisors (see below), whose sum is σ = 882000. Its totient is φ = 161472.

The previous prime is 411809. The next prime is 411821. The reversal of 411820 is 28114.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 411794 and 411803.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 411820.

It is not an unprimeable number, because it can be changed into a prime (411821) 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, 1006 + ... + 1354.

It is an arithmetic number, because the mean of its divisors is an integer number (36750).

2⁴¹¹⁸²⁰ is an apocalyptic number.

It is an amenable number.

411820 is an abundant number, since it is smaller than the sum of its proper divisors (470180).

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

411820 is a wasteful number, since it uses less digits than its factorization.

411820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 411820 is about 641.7320313028. The cubic root of 411820 is about 74.3993505936.

Adding to 411820 its reverse (28114), we get a palindrome (439934).

The spelling of 411820 in words is "four hundred eleven thousand, eight hundred twenty".