2050409 has 4 divisors (see below), whose sum is σ = 2079360. Its totient is φ = 2021460.

The previous prime is 2050403. The next prime is 2050417. The reversal of 2050409 is 9040502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2050409 - 2¹² = 2046313 is a prime.

It is a Duffinian number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 14369 + ... + 14510.

It is an arithmetic number, because the mean of its divisors is an integer number (519840).

2^2050409 is an apocalyptic number.

It is an amenable number.

2050409 is a deficient number, since it is larger than the sum of its proper divisors (28951).

2050409 is an equidigital number, since it uses as much as digits as its factorization.

2050409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28950.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2050409 is about 1431.9249281998. The cubic root of 2050409 is about 127.0418569536.

The spelling of 2050409 in words is "two million, fifty thousand, four hundred nine".