2573409 has 8 divisors (see below), whose sum is σ = 3633120. Its totient is φ = 1614656.

The previous prime is 2573393. The next prime is 2573413. The reversal of 2573409 is 9043752.

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

It is a cyclic number.

It is not a de Polignac number, because 2573409 - 2⁴ = 2573393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2573449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25179 + ... + 25280.

It is an arithmetic number, because the mean of its divisors is an integer number (454140).

2^2573409 is an apocalyptic number.

It is an amenable number.

2573409 is a deficient number, since it is larger than the sum of its proper divisors (1059711).

2573409 is a wasteful number, since it uses less digits than its factorization.

2573409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50479.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2573409 is about 1604.1848397239. The cubic root of 2573409 is about 137.0365043825.

The spelling of 2573409 in words is "two million, five hundred seventy-three thousand, four hundred nine".