41641220 has 12 divisors (see below), whose sum is σ = 87446604. Its totient is φ = 16656480.

The previous prime is 41641213. The next prime is 41641241. The reversal of 41641220 is 2214614.

It can be written as a sum of positive squares in 2 ways, for example, as 16581184 + 25060036 = 4072^2 + 5006^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2082061 = 41641220 / (4 + 1 + 6 + 4 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 41641192 and 41641201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041011 + ... + 1041050.

It is an arithmetic number, because the mean of its divisors is an integer number (7287217).

Almost surely, 2^41641220 is an apocalyptic number.

It is an amenable number.

41641220 is an abundant number, since it is smaller than the sum of its proper divisors (45805384).

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

41641220 is a wasteful number, since it uses less digits than its factorization.

41641220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082070 (or 2082068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 41641220 is about 6453.0008523167. Note that the first 3 decimals coincide. The cubic root of 41641220 is about 346.6100478704.

Adding to 41641220 its reverse (2214614), we get a palindrome (43855834).

The spelling of 41641220 in words is "forty-one million, six hundred forty-one thousand, two hundred twenty".