240020043 has 4 divisors (see below), whose sum is σ = 320026728. Its totient is φ = 160013360.

The previous prime is 240020041. The next prime is 240020089. The reversal of 240020043 is 340020042.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 240020043 - 2¹ = 240020041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240020041) 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, 40003338 + ... + 40003343.

It is an arithmetic number, because the mean of its divisors is an integer number (80006682).

Almost surely, 2^240020043 is an apocalyptic number.

240020043 is a deficient number, since it is larger than the sum of its proper divisors (80006685).

240020043 is an equidigital number, since it uses as much as digits as its factorization.

240020043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80006684.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 240020043 is about 15492.5802563679. The cubic root of 240020043 is about 621.4638002262.

Adding to 240020043 its reverse (340020042), we get a palindrome (580040085).

Subtracting 240020043 from its reverse (340020042), we obtain a palindrome (99999999).

The spelling of 240020043 in words is "two hundred forty million, twenty thousand, forty-three".