2643632 has 20 divisors (see below), whose sum is σ = 5166336. Its totient is φ = 1310400.

The previous prime is 2643629. The next prime is 2643647. The reversal of 2643632 is 2363462.

It is a d-powerful number, because it can be written as 2⁷ + 6 + 4¹⁰ + 3⁴ + 6 + 3¹³ + 2⁹ .

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, 1382 + ... + 2682.

2^2643632 is an apocalyptic number.

It is an amenable number.

2643632 is a deficient number, since it is larger than the sum of its proper divisors (2522704).

2643632 is a wasteful number, since it uses less digits than its factorization.

2643632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436 (or 1430 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

The square root of 2643632 is about 1625.9249675185. The cubic root of 2643632 is about 138.2718160044.

The spelling of 2643632 in words is "two million, six hundred forty-three thousand, six hundred thirty-two".