2659880 has 32 divisors (see below), whose sum is σ = 6193800. Its totient is φ = 1026816.

The previous prime is 2659879. The next prime is 2659883. The reversal of 2659880 is 889562.

It can be written as a sum of positive squares in 4 ways, for example, as 1909924 + 749956 = 1382^2 + 866^2 .

It is a super-2 number, since 2×2659880² = 14149923228800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 14 + ... + 2306.

2^2659880 is an apocalyptic number.

2659880 is a gapful number since it is divisible by the number (20) 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 2659880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3096900).

2659880 is an abundant number, since it is smaller than the sum of its proper divisors (3533920).

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

2659880 is a wasteful number, since it uses less digits than its factorization.

2659880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2659880 is about 1630.9138542547. The cubic root of 2659880 is about 138.5545146344.

The spelling of 2659880 in words is "two million, six hundred fifty-nine thousand, eight hundred eighty".