2606844021 has 16 divisors (see below), whose sum is σ = 3495710400. Its totient is φ = 1727953920.

The previous prime is 2606844013. The next prime is 2606844043. The reversal of 2606844021 is 1204486062.

It is not a de Polignac number, because 2606844021 - 2³ = 2606844013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606844091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1232661 + ... + 1234773.

It is an arithmetic number, because the mean of its divisors is an integer number (218481900).

Almost surely, 2^2606844021 is an apocalyptic number.

It is an amenable number.

2606844021 is a deficient number, since it is larger than the sum of its proper divisors (888866379).

2606844021 is a wasteful number, since it uses less digits than its factorization.

2606844021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2606844021 is about 51057.2621768931. The cubic root of 2606844021 is about 1376.2743484437.

The spelling of 2606844021 in words is "two billion, six hundred six million, eight hundred forty-four thousand, twenty-one".