2022490 has 16 divisors (see below), whose sum is σ = 3854952. Its totient is φ = 761344.

The previous prime is 2022487. The next prime is 2022491. The reversal of 2022490 is 942202.

2022490 = 634² + 635² + ... + 638².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2019241 + 3249 = 1421^2 + 57^2 .

It is not an unprimeable number, because it can be changed into a prime (2022491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5779 + ... + 6118.

2^2022490 is an apocalyptic number.

2022490 is a deficient number, since it is larger than the sum of its proper divisors (1832462).

2022490 is a wasteful number, since it uses less digits than its factorization.

2022490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2022490 is about 1422.1427495157. The cubic root of 2022490 is about 126.4626061835.

Subtracting from 2022490 its product of nonzero digits (288), we obtain a palindrome (2022202).

Adding to 2022490 its reverse (942202), we get a palindrome (2964692).

The spelling of 2022490 in words is "two million, twenty-two thousand, four hundred ninety".