2643630 has 32 divisors (see below), whose sum is σ = 6922368. Its totient is φ = 640800.

The previous prime is 2643629. The next prime is 2643647. The reversal of 2643630 is 363462.

2643630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2643630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3676 + ... + 4335.

It is an arithmetic number, because the mean of its divisors is an integer number (216324).

2^2643630 is an apocalyptic number.

2643630 is an abundant number, since it is smaller than the sum of its proper divisors (4278738).

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

2643630 is a wasteful number, since it uses less digits than its factorization.

2643630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 2643630 is about 1625.9243524838. The cubic root of 2643630 is about 138.2717811353.

The spelling of 2643630 in words is "two million, six hundred forty-three thousand, six hundred thirty".