2605764 has 48 divisors (see below), whose sum is σ = 7067648. Its totient is φ = 731808.

The previous prime is 2605763. The next prime is 2605769. The reversal of 2605764 is 4675062.

It is not an unprimeable number, because it can be changed into a prime (2605763) 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, 5397 + ... + 5859.

2^2605764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2605764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533824).

2605764 is an abundant number, since it is smaller than the sum of its proper divisors (4461884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2605764 is a wasteful number, since it uses less digits than its factorization.

2605764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2605764 is about 1614.2379006825. The cubic root of 2605764 is about 137.6084257730.

The spelling of 2605764 in words is "two million, six hundred five thousand, seven hundred sixty-four".