20242043 has 4 divisors (see below), whose sum is σ = 20253240. Its totient is φ = 20230848.

The previous prime is 20242031. The next prime is 20242051. The reversal of 20242043 is 34024202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34024202 = 2 ⋅17012101.

It is a cyclic number.

It is not a de Polignac number, because 20242043 - 2⁶ = 20241979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (5063310).

Almost surely, 2^20242043 is an apocalyptic number.

20242043 is a deficient number, since it is larger than the sum of its proper divisors (11197).

20242043 is an equidigital number, since it uses as much as digits as its factorization.

20242043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20242043 is about 4499.1158020215. The cubic root of 20242043 is about 272.5323834365.

Adding to 20242043 its reverse (34024202), we get a palindrome (54266245).

The spelling of 20242043 in words is "twenty million, two hundred forty-two thousand, forty-three".