2050405 has 12 divisors (see below), whose sum is σ = 2862540. Its totient is φ = 1405824.

The previous prime is 2050403. The next prime is 2050417. The reversal of 2050405 is 5040502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 933156 = 1057^2 + 966^2 .

It is not a de Polignac number, because 2050405 - 2¹ = 2050403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3940 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (238545).

2^2050405 is an apocalyptic number.

It is an amenable number.

2050405 is a deficient number, since it is larger than the sum of its proper divisors (812135).

2050405 is an equidigital number, since it uses as much as digits as its factorization.

2050405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388 (or 8381 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 2050405 is about 1431.9235314779. The cubic root of 2050405 is about 127.0417743412.

Adding to 2050405 its reverse (5040502), we get a palindrome (7090907).

The spelling of 2050405 in words is "two million, fifty thousand, four hundred five".