2420543 has 16 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 2106720.

The previous prime is 2420531. The next prime is 2420549. The reversal of 2420543 is 3450242.

It is not a de Polignac number, because 2420543 - 2⁶ = 2420479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420549) 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, 12578 + ... + 12768.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^2420543 is an apocalyptic number.

2420543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2420543 is a deficient number, since it is larger than the sum of its proper divisors (344257).

2420543 is a wasteful number, since it uses less digits than its factorization.

2420543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262.

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

The square root of 2420543 is about 1555.8094356315. The cubic root of 2420543 is about 134.2675097118.

Adding to 2420543 its reverse (3450242), we get a palindrome (5870785).

The spelling of 2420543 in words is "two million, four hundred twenty thousand, five hundred forty-three".