2421822 has 32 divisors (see below), whose sum is σ = 5312160. Its totient is φ = 731520.

The previous prime is 2421821. The next prime is 2421823. The reversal of 2421822 is 2281242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2421821) and next prime (2421823).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421821) 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, 4504 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (166005).

2^2421822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2656080).

2421822 is an abundant number, since it is smaller than the sum of its proper divisors (2890338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421822 is a wasteful number, since it uses less digits than its factorization.

2421822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 512, while the sum is 21.

The square root of 2421822 is about 1556.2204214057. The cubic root of 2421822 is about 134.2911542559.

The spelling of 2421822 in words is "two million, four hundred twenty-one thousand, eight hundred twenty-two".