2543426 has 8 divisors (see below), whose sum is σ = 3938304. Its totient is φ = 1230660.

The previous prime is 2543423. The next prime is 2543441. The reversal of 2543426 is 6243452.

2543426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2 + 5⁹ + 4² + 3⁵ + 4⁸ + 2¹⁹ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 2543395 and 2543404.

It is not an unprimeable number, because it can be changed into a prime (2543423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20450 + ... + 20573.

It is an arithmetic number, because the mean of its divisors is an integer number (492288).

2^2543426 is an apocalyptic number.

2543426 is a deficient number, since it is larger than the sum of its proper divisors (1394878).

2543426 is a wasteful number, since it uses less digits than its factorization.

2543426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41056.

The product of its digits is 5760, while the sum is 26.

The square root of 2543426 is about 1594.8122146510. The cubic root of 2543426 is about 136.5022161036.

Adding to 2543426 its sum of digits (26), we get a palindrome (2543452).

Adding to 2543426 its reverse (6243452), we get a palindrome (8786878).

The spelling of 2543426 in words is "two million, five hundred forty-three thousand, four hundred twenty-six".