4050409 has 12 divisors (see below), whose sum is σ = 4551120. Its totient is φ = 3573960.

The previous prime is 4050377. The next prime is 4050433. The reversal of 4050409 is 9040504.

It is not a de Polignac number, because 4050409 - 2⁵ = 4050377 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4050409.

It is not an unprimeable number, because it can be changed into a prime (4050469) 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, 51232 + ... + 51310.

It is an arithmetic number, because the mean of its divisors is an integer number (379260).

Almost surely, 2^4050409 is an apocalyptic number.

It is an amenable number.

4050409 is a deficient number, since it is larger than the sum of its proper divisors (500711).

4050409 is an equidigital number, since it uses as much as digits as its factorization.

4050409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4050409 is about 2012.5627940514. The cubic root of 4050409 is about 159.4041509666.

The spelling of 4050409 in words is "four million, fifty thousand, four hundred nine".