2622021 has 8 divisors (see below), whose sum is σ = 3503904. Its totient is φ = 1744080.

The previous prime is 2622017. The next prime is 2622031. The reversal of 2622021 is 1202262.

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

It is not a de Polignac number, because 2622021 - 2² = 2622017 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6² + 2⁹ + 2¹⁹ + 0 + 2²¹ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622031) 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, 1386 + ... + 2676.

It is an arithmetic number, because the mean of its divisors is an integer number (437988).

2^2622021 is an apocalyptic number.

It is an amenable number.

2622021 is a deficient number, since it is larger than the sum of its proper divisors (881883).

2622021 is a wasteful number, since it uses less digits than its factorization.

2622021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2622021 is about 1619.2655742651. The cubic root of 2622021 is about 137.8940059864.

Adding to 2622021 its reverse (1202262), we get a palindrome (3824283).

The spelling of 2622021 in words is "two million, six hundred twenty-two thousand, twenty-one".