2688078 has 8 divisors (see below), whose sum is σ = 5376168. Its totient is φ = 896024.

The previous prime is 2688073. The next prime is 2688137. The reversal of 2688078 is 8708862.

It is a sphenic number, since it is the product of 3 distinct primes.

2688078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224001 + ... + 224012.

It is an arithmetic number, because the mean of its divisors is an integer number (672021).

2^2688078 is an apocalyptic number.

2688078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2688078 is a wasteful number, since it uses less digits than its factorization.

2688078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448018.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2688078 is about 1639.5359099453. The cubic root of 2688078 is about 139.0424106737.

The spelling of 2688078 in words is "two million, six hundred eighty-eight thousand, seventy-eight".