841220 has 12 divisors (see below), whose sum is σ = 1766604. Its totient is φ = 336480.

The previous prime is 841219. The next prime is 841223. The reversal of 841220 is 22148.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 188356 = 808^2 + 434^2 .

It is not an unprimeable number, because it can be changed into a prime (841223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21011 + ... + 21050.

It is an arithmetic number, because the mean of its divisors is an integer number (147217).

2⁸⁴¹²²⁰ is an apocalyptic number.

It is an amenable number.

841220 is an abundant number, since it is smaller than the sum of its proper divisors (925384).

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

841220 is a wasteful number, since it uses less digits than its factorization.

841220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42070 (or 42068 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 841220 is about 917.1804620684. The cubic root of 841220 is about 94.3995367688.

Adding to 841220 its reverse (22148), we get a palindrome (863368).

The spelling of 841220 in words is "eight hundred forty-one thousand, two hundred twenty".