2605090 has 16 divisors (see below), whose sum is σ = 4936320. Its totient is φ = 987120.

The previous prime is 2605087. The next prime is 2605091. The reversal of 2605090 is 905062.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605091) 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, 6666 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (308520).

2^2605090 is an apocalyptic number.

2605090 is a deficient number, since it is larger than the sum of its proper divisors (2331230).

2605090 is a wasteful number, since it uses less digits than its factorization.

2605090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2605090 is about 1614.0291199356. The cubic root of 2605090 is about 137.5965602732.

The spelling of 2605090 in words is "two million, six hundred five thousand, ninety".