2685538 has 8 divisors (see below), whose sum is σ = 4036032. Its totient is φ = 1340196.

The previous prime is 2685523. The next prime is 2685539. The reversal of 2685538 is 8355862.

2685538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2685538² = 14424228698888, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2685497 and 2685506.

It is not an unprimeable number, because it can be changed into a prime (2685539) by changing a digit.

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, 531 + ... + 2377.

It is an arithmetic number, because the mean of its divisors is an integer number (504504).

2^2685538 is an apocalyptic number.

2685538 is a deficient number, since it is larger than the sum of its proper divisors (1350494).

2685538 is a wasteful number, since it uses less digits than its factorization.

2685538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576.

The product of its digits is 57600, while the sum is 37.

The square root of 2685538 is about 1638.7611174299. The cubic root of 2685538 is about 138.9986025428.

It can be divided in two parts, 2685 and 538, that added together give a palindrome (3223).

The spelling of 2685538 in words is "two million, six hundred eighty-five thousand, five hundred thirty-eight".