2568842 has 4 divisors (see below), whose sum is σ = 3853266. Its totient is φ = 1284420.

The previous prime is 2568833. The next prime is 2568869. The reversal of 2568842 is 2488652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2157961 + 410881 = 1469^2 + 641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642209 + ... + 642212.

2^2568842 is an apocalyptic number.

2568842 is a deficient number, since it is larger than the sum of its proper divisors (1284424).

2568842 is a wasteful number, since it uses less digits than its factorization.

2568842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284423.

The product of its digits is 30720, while the sum is 35.

The square root of 2568842 is about 1602.7607432178. The cubic root of 2568842 is about 136.9553906655.

The spelling of 2568842 in words is "two million, five hundred sixty-eight thousand, eight hundred forty-two".