2622438 has 48 divisors (see below), whose sum is σ = 6997536. Its totient is φ = 691200.

The previous prime is 2622427. The next prime is 2622439. The reversal of 2622438 is 8342262.

2622438 is a `hidden beast` number, since 2 + 622 + 4 + 38 = 666.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (145782).

2^2622438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2622438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3498768).

2622438 is an abundant number, since it is smaller than the sum of its proper divisors (4375098).

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

2622438 is a wasteful number, since it uses less digits than its factorization.

2622438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1626 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 2622438 is about 1619.3943312239. The cubic root of 2622438 is about 137.9013157107.

It can be divided in two parts, 26224 and 38, that added together give a palindrome (26262).

The spelling of 2622438 in words is "two million, six hundred twenty-two thousand, four hundred thirty-eight".