2260021 has 4 divisors (see below), whose sum is σ = 2270944. Its totient is φ = 2249100.

The previous prime is 2260019. The next prime is 2260039. The reversal of 2260021 is 1200622.

It is a happy number.

2260021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1200622 = 2 ⋅600311.

It is a cyclic number.

It is not a de Polignac number, because 2260021 - 2¹ = 2260019 is a prime.

It is a Duffinian number.

2260021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2259983 and 2260010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2260051) 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, 5145 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (567736).

2^2260021 is an apocalyptic number.

It is an amenable number.

2260021 is a deficient number, since it is larger than the sum of its proper divisors (10923).

2260021 is a wasteful number, since it uses less digits than its factorization.

2260021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10922.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2260021 is about 1503.3366223172. The cubic root of 2260021 is about 131.2313182783.

Adding to 2260021 its reverse (1200622), we get a palindrome (3460643).

The spelling of 2260021 in words is "two million, two hundred sixty thousand, twenty-one".