2643522 has 32 divisors (see below), whose sum is σ = 6106752. Its totient is φ = 747264.

The previous prime is 2643497. The next prime is 2643523. The reversal of 2643522 is 2253462.

It is a d-powerful number, because it can be written as 2⁶ + 6 + 4² + 3¹³ + 5² + 2⁹ + 2²⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 2643492 and 2643501.

It is not an unprimeable number, because it can be changed into a prime (2643523) 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, 4468 + ... + 5024.

It is an arithmetic number, because the mean of its divisors is an integer number (190836).

2^2643522 is an apocalyptic number.

2643522 is an abundant number, since it is smaller than the sum of its proper divisors (3463230).

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

2643522 is a wasteful number, since it uses less digits than its factorization.

2643522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 2880, while the sum is 24.

The square root of 2643522 is about 1625.8911402674. The cubic root of 2643522 is about 138.2698981744.

Adding to 2643522 its reverse (2253462), we get a palindrome (4896984).

The spelling of 2643522 in words is "two million, six hundred forty-three thousand, five hundred twenty-two".