2282021 has 8 divisors (see below), whose sum is σ = 2657664. Its totient is φ = 1918800.

The previous prime is 2282017. The next prime is 2282023. The reversal of 2282021 is 1202822.

2282021 = 91² + 92² + ... + 196².

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

It is a cyclic number.

It is not a de Polignac number, because 2282021 - 2² = 2282017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2282023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2705 + ... + 3446.

It is an arithmetic number, because the mean of its divisors is an integer number (332208).

2^2282021 is an apocalyptic number.

It is an amenable number.

2282021 is a deficient number, since it is larger than the sum of its proper divisors (375643).

2282021 is an equidigital number, since it uses as much as digits as its factorization.

2282021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2282021 is about 1510.6359587935. The cubic root of 2282021 is about 131.6557643771.

Adding to 2282021 its reverse (1202822), we get a palindrome (3484843).

The spelling of 2282021 in words is "two million, two hundred eighty-two thousand, twenty-one".