2639622 has 16 divisors (see below), whose sum is σ = 5313600. Its totient is φ = 874152.

The previous prime is 2639597. The next prime is 2639633. The reversal of 2639622 is 2269362.

It is a d-powerful number, because it can be written as 2 + 6⁴ + 3⁵ + 9⁶ + 6⁴ + 2¹³ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 2639622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (332100).

2^2639622 is an apocalyptic number.

2639622 is an abundant number, since it is smaller than the sum of its proper divisors (2673978).

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

2639622 is a wasteful number, since it uses less digits than its factorization.

2639622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867.

The product of its digits is 7776, while the sum is 30.

The square root of 2639622 is about 1624.6913553041. The cubic root of 2639622 is about 138.2018679723.

The spelling of 2639622 in words is "two million, six hundred thirty-nine thousand, six hundred twenty-two".