2605449 has 16 divisors (see below), whose sum is σ = 4331520. Its totient is φ = 1353360.

The previous prime is 2605439. The next prime is 2605481. The reversal of 2605449 is 9445062.

It is not a de Polignac number, because 2605449 - 2⁴ = 2605433 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2605409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5409 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (270720).

2^2605449 is an apocalyptic number.

It is an amenable number.

2605449 is a deficient number, since it is larger than the sum of its proper divisors (1726071).

2605449 is a wasteful number, since it uses less digits than its factorization.

2605449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11300.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2605449 is about 1614.1403284721. The cubic root of 2605449 is about 137.6028805790.

The spelling of 2605449 in words is "two million, six hundred five thousand, four hundred forty-nine".