2688100 has 18 divisors (see below), whose sum is σ = 5833394. Its totient is φ = 1075200.

The previous prime is 2688073. The next prime is 2688137. The reversal of 2688100 is 18862.

It can be written as a sum of positive squares in 3 ways, for example, as 401956 + 2286144 = 634^2 + 1512^2 .

It is a super-2 number, since 2×2688100² = 14451763220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13341 + ... + 13540.

2^2688100 is an apocalyptic number.

2688100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688100 is an abundant number, since it is smaller than the sum of its proper divisors (3145294).

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

2688100 is a wasteful number, since it uses less digits than its factorization.

2688100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26895 (or 26888 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2688100 is about 1639.5426191472. The cubic root of 2688100 is about 139.0427899936.

The spelling of 2688100 in words is "two million, six hundred eighty-eight thousand, one hundred".