2606218 has 4 divisors (see below), whose sum is σ = 3909330. Its totient is φ = 1303108.

The previous prime is 2606189. The next prime is 2606221. The reversal of 2606218 is 8126062.

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., 1580049 + 1026169 = 1257^2 + 1013^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2606192 and 2606201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651553 + ... + 651556.

2^2606218 is an apocalyptic number.

2606218 is a deficient number, since it is larger than the sum of its proper divisors (1303112).

2606218 is a wasteful number, since it uses less digits than its factorization.

2606218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303111.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2606218 is about 1614.3785181921. The cubic root of 2606218 is about 137.6164171078.

The spelling of 2606218 in words is "two million, six hundred six thousand, two hundred eighteen".