2688045 has 8 divisors (see below), whose sum is σ = 4300896. Its totient is φ = 1433616.

The previous prime is 2688019. The next prime is 2688053. The reversal of 2688045 is 5408862.

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

It is not a de Polignac number, because 2688045 - 2¹⁴ = 2671661 is a prime.

It is an Ulam number.

2688045 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2687997 and 2688015.

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, 89587 + ... + 89616.

It is an arithmetic number, because the mean of its divisors is an integer number (537612).

2^2688045 is an apocalyptic number.

It is an amenable number.

2688045 is a deficient number, since it is larger than the sum of its proper divisors (1612851).

2688045 is a wasteful number, since it uses less digits than its factorization.

2688045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179211.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2688045 is about 1639.5258460909. The cubic root of 2688045 is about 139.0418416899.

The spelling of 2688045 in words is "two million, six hundred eighty-eight thousand, forty-five".