2622664 has 16 divisors (see below), whose sum is σ = 5364720. Its totient is φ = 1192080.

The previous prime is 2622637. The next prime is 2622679. The reversal of 2622664 is 4662262.

It is a d-powerful number, because it can be written as 2⁹ + 6³ + 2¹⁹ + 2²¹ + 6³ + 6³ + 4³ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14814 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (335295).

2^2622664 is an apocalyptic number.

It is an amenable number.

2622664 is an abundant number, since it is smaller than the sum of its proper divisors (2742056).

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

2622664 is a wasteful number, since it uses less digits than its factorization.

2622664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820 (or 29816 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 2622664 is about 1619.4641088953. The cubic root of 2622664 is about 137.9052770121.

It can be divided in two parts, 262 and 2664, that added together give a triangular number (2926 = T₇₆).

The spelling of 2622664 in words is "two million, six hundred twenty-two thousand, six hundred sixty-four".