2643246 has 32 divisors (see below), whose sum is σ = 6067200. Its totient is φ = 852120.

The previous prime is 2643241. The next prime is 2643247. The reversal of 2643246 is 6423462.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (189600).

2^2643246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3033600).

2643246 is an abundant number, since it is smaller than the sum of its proper divisors (3423954).

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

2643246 is a wasteful number, since it uses less digits than its factorization.

2643246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1615 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2643246 is about 1625.8062615207. The cubic root of 2643246 is about 138.2650859302.

The spelling of 2643246 in words is "two million, six hundred forty-three thousand, two hundred forty-six".