2688742 has 8 divisors (see below), whose sum is σ = 4609296. Its totient is φ = 1152312.

The previous prime is 2688733. The next prime is 2688757. The reversal of 2688742 is 2478862.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96013 + ... + 96040.

It is an arithmetic number, because the mean of its divisors is an integer number (576162).

2^2688742 is an apocalyptic number.

2688742 is a deficient number, since it is larger than the sum of its proper divisors (1920554).

2688742 is a wasteful number, since it uses less digits than its factorization.

2688742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192062.

The product of its digits is 43008, while the sum is 37.

The square root of 2688742 is about 1639.7383937690. The cubic root of 2688742 is about 139.0538583276.

The spelling of 2688742 in words is "two million, six hundred eighty-eight thousand, seven hundred forty-two".