2688980 has 24 divisors (see below), whose sum is σ = 6453888. Its totient is φ = 921888.

The previous prime is 2688979. The next prime is 2688997. The reversal of 2688980 is 898862.

It is a happy number.

It is a super-2 number, since 2×2688980² = 14461226880800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9464 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (268912).

2^2688980 is an apocalyptic number.

2688980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688980 is an abundant number, since it is smaller than the sum of its proper divisors (3764908).

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

2688980 is a wasteful number, since it uses less digits than its factorization.

2688980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19223 (or 19221 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 2688980 is about 1639.8109647151. The cubic root of 2688980 is about 139.0579610941.

The spelling of 2688980 in words is "two million, six hundred eighty-eight thousand, nine hundred eighty".