2857738 has 8 divisors (see below), whose sum is σ = 4616388. Its totient is φ = 1318944.

The previous prime is 2857721. The next prime is 2857753. The reversal of 2857738 is 8377582.

2857738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 243049 = 1617^2 + 493^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2857738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54931 + ... + 54982.

2^2857738 is an apocalyptic number.

2857738 is a deficient number, since it is larger than the sum of its proper divisors (1758650).

2857738 is a wasteful number, since it uses less digits than its factorization.

2857738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109928.

The product of its digits is 94080, while the sum is 40.

The square root of 2857738 is about 1690.4845459217. The cubic root of 2857738 is about 141.9081929879.

The spelling of 2857738 in words is "two million, eight hundred fifty-seven thousand, seven hundred thirty-eight".