2622642 has 32 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 783120.

The previous prime is 2622637. The next prime is 2622679. The reversal of 2622642 is 2462262.

It is a d-powerful number, because it can be written as 2³ + 6 + 2⁷ + 2¹⁹ + 6² + 4⁵ + 2²¹ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^2622642 is an apocalyptic number.

2622642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2622642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903040).

2622642 is an abundant number, since it is smaller than the sum of its proper divisors (3183438).

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

2622642 is a wasteful number, since it uses less digits than its factorization.

2622642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its digits is 2304, while the sum is 24.

The square root of 2622642 is about 1619.4573165107. The cubic root of 2622642 is about 137.9048914087.

The spelling of 2622642 in words is "two million, six hundred twenty-two thousand, six hundred forty-two".