2643582 has 16 divisors (see below), whose sum is σ = 5469840. Its totient is φ = 850752.

The previous prime is 2643581. The next prime is 2643583. The reversal of 2643582 is 2853462.

It is an interprime number because it is at equal distance from previous prime (2643581) and next prime (2643583).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 6 + 4¹⁰ + 3¹³ + 5³ + 8 + 2⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7423 + ... + 7770.

It is an arithmetic number, because the mean of its divisors is an integer number (341865).

2^2643582 is an apocalyptic number.

2643582 is an abundant number, since it is smaller than the sum of its proper divisors (2826258).

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

2643582 is a wasteful number, since it uses less digits than its factorization.

2643582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15227.

The product of its digits is 11520, while the sum is 30.

The square root of 2643582 is about 1625.9095915825. The cubic root of 2643582 is about 138.2709442701.

The spelling of 2643582 in words is "two million, six hundred forty-three thousand, five hundred eighty-two".