2680002 has 36 divisors (see below), whose sum is σ = 6294834. Its totient is φ = 823680.

The previous prime is 2679979. The next prime is 2680003. The reversal of 2680002 is 2000862.

It can be written as a sum of positive squares in 3 ways, for example, as 881721 + 1798281 = 939^2 + 1341^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2602 + ... + 3482.

2^2680002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2680002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3147417).

2680002 is an abundant number, since it is smaller than the sum of its proper divisors (3614832).

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

2680002 is a wasteful number, since it uses less digits than its factorization.

2680002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2680002 is about 1637.0711652216. The cubic root of 2680002 is about 138.9030257136.

Adding to 2680002 its reverse (2000862), we get a palindrome (4680864).

The spelling of 2680002 in words is "two million, six hundred eighty thousand, two".