2659888 has 80 divisors (see below), whose sum is σ = 6856704. Its totient is φ = 967680.

The previous prime is 2659883. The next prime is 2659903. The reversal of 2659888 is 8889562.

2659888 = 77² + 78² + ... + 203².

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2659883) 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, 20881 + ... + 21007.

2^2659888 is an apocalyptic number.

2659888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2659888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3428352).

2659888 is an abundant number, since it is smaller than the sum of its proper divisors (4196816).

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

2659888 is a wasteful number, since it uses less digits than its factorization.

2659888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 2659888 is about 1630.9163068656. The cubic root of 2659888 is about 138.5546535423.

It can be divided in two parts, 265 and 9888, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 2659888 in words is "two million, six hundred fifty-nine thousand, eight hundred eighty-eight".