2543342 has 4 divisors (see below), whose sum is σ = 3815016. Its totient is φ = 1271670.

The previous prime is 2543341. The next prime is 2543351. The reversal of 2543342 is 2433452.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635834 + ... + 635837.

It is an arithmetic number, because the mean of its divisors is an integer number (953754).

2^2543342 is an apocalyptic number.

2543342 is a deficient number, since it is larger than the sum of its proper divisors (1271674).

2543342 is a wasteful number, since it uses less digits than its factorization.

2543342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271673.

The product of its digits is 2880, while the sum is 23.

The square root of 2543342 is about 1594.7858790446. The cubic root of 2543342 is about 136.5007133651.

Adding to 2543342 its reverse (2433452), we get a palindrome (4976794).

The spelling of 2543342 in words is "two million, five hundred forty-three thousand, three hundred forty-two".