2643030 has 80 divisors (see below), whose sum is σ = 7683984. Its totient is φ = 648000.

The previous prime is 2643019. The next prime is 2643037. The reversal of 2643030 is 303462.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2642994 and 2643012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643037) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10405 + ... + 10655.

2^2643030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3841992).

2643030 is an abundant number, since it is smaller than the sum of its proper divisors (5040954).

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

2643030 is a wasteful number, since it uses less digits than its factorization.

2643030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2643030 is about 1625.7398315844. The cubic root of 2643030 is about 138.2613195924.

Adding to 2643030 its product of nonzero digits (432), we get a palindrome (2643462).

Adding to 2643030 its reverse (303462), we get a palindrome (2946492).

The spelling of 2643030 in words is "two million, six hundred forty-three thousand, thirty".