2622646 has 16 divisors (see below), whose sum is σ = 4460400. Its totient is φ = 1146528.

The previous prime is 2622637. The next prime is 2622679. The reversal of 2622646 is 6462262.

It is a super-4 number, since 4×2622646⁴ (a number of 27 digits) contains 4444 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 6 + 2¹⁹ + 2²¹ + 6³ + 4⁴ + 6³ .

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, 2161 + ... + 3148.

It is an arithmetic number, because the mean of its divisors is an integer number (278775).

2^2622646 is an apocalyptic number.

2622646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2622646 is a deficient number, since it is larger than the sum of its proper divisors (1837754).

2622646 is a wasteful number, since it uses less digits than its factorization.

2622646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343.

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

The square root of 2622646 is about 1619.4585514918. The cubic root of 2622646 is about 137.9049615186.

The spelling of 2622646 in words is "two million, six hundred twenty-two thousand, six hundred forty-six".