2606222042 has 4 divisors (see below), whose sum is σ = 3909333066. Its totient is φ = 1303111020.

The previous prime is 2606221999. The next prime is 2606222071. The reversal of 2606222042 is 2402226062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2402226062 = 2 ⋅1201113031.

It can be written as a sum of positive squares in only one way, i.e., 2605183681 + 1038361 = 51041^2 + 1019^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651555509 + ... + 651555512.

Almost surely, 2^2606222042 is an apocalyptic number.

2606222042 is a deficient number, since it is larger than the sum of its proper divisors (1303111024).

2606222042 is a wasteful number, since it uses less digits than its factorization.

2606222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303111023.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2606222042 is about 51051.1708190909. The cubic root of 2606222042 is about 1376.1648825116.

The spelling of 2606222042 in words is "two billion, six hundred six million, two hundred twenty-two thousand, forty-two".