2605641 has 16 divisors (see below), whose sum is σ = 3873600. Its totient is φ = 1548288.

The previous prime is 2605637. The next prime is 2605661. The reversal of 2605641 is 1465062.

It is not a de Polignac number, because 2605641 - 2² = 2605637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605661) 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, 376 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (242100).

2^2605641 is an apocalyptic number.

It is an amenable number.

2605641 is a deficient number, since it is larger than the sum of its proper divisors (1267959).

2605641 is a wasteful number, since it uses less digits than its factorization.

2605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728.

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

The square root of 2605641 is about 1614.1998017594. The cubic root of 2605641 is about 137.6062605600.

The spelling of 2605641 in words is "two million, six hundred five thousand, six hundred forty-one".