2402543 has 16 divisors (see below), whose sum is σ = 2884896. Its totient is φ = 1971840.

The previous prime is 2402537. The next prime is 2402549. The reversal of 2402543 is 3452042.

It is an interprime number because it is at equal distance from previous prime (2402537) and next prime (2402549).

It is not a de Polignac number, because 2402543 - 2⁶ = 2402479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402549) 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, 7421 + ... + 7737.

It is an arithmetic number, because the mean of its divisors is an integer number (180306).

2^2402543 is an apocalyptic number.

2402543 is a deficient number, since it is larger than the sum of its proper divisors (482353).

2402543 is a wasteful number, since it uses less digits than its factorization.

2402543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2402543 is about 1550.0138709057. The cubic root of 2402543 is about 133.9338613242.

Adding to 2402543 its reverse (3452042), we get a palindrome (5854585).

The spelling of 2402543 in words is "two million, four hundred two thousand, five hundred forty-three".