2600864 has 48 divisors (see below), whose sum is σ = 6205248. Its totient is φ = 1047552.

The previous prime is 2600837. The next prime is 2600867. The reversal of 2600864 is 4680062.

It is not an unprimeable number, because it can be changed into a prime (2600867) 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, 3467 + ... + 4149.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

2^2600864 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 2600864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3102624).

2600864 is an abundant number, since it is smaller than the sum of its proper divisors (3604384).

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

2600864 is a wasteful number, since it uses less digits than its factorization.

2600864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2600864 is about 1612.7194424326. The cubic root of 2600864 is about 137.5221165526.

The spelling of 2600864 in words is "two million, six hundred thousand, eight hundred sixty-four".