2054409 has 8 divisors (see below), whose sum is σ = 3130560. Its totient is φ = 1173936.

The previous prime is 2054369. The next prime is 2054443. The reversal of 2054409 is 9044502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2054409 - 2⁹ = 2053897 is a prime.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2054449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48894 + ... + 48935.

It is an arithmetic number, because the mean of its divisors is an integer number (391320).

2^2054409 is an apocalyptic number.

It is an amenable number.

2054409 is a deficient number, since it is larger than the sum of its proper divisors (1076151).

2054409 is an equidigital number, since it uses as much as digits as its factorization.

2054409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97839.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2054409 is about 1433.3209689389. The cubic root of 2054409 is about 127.1244156587.

The spelling of 2054409 in words is "two million, fifty-four thousand, four hundred nine".