2400020743 has 2 divisors, whose sum is σ = 2400020744. Its totient is φ = 2400020742.

The previous prime is 2400020741. The next prime is 2400020789. The reversal of 2400020743 is 3470200042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2400020743 - 2¹ = 2400020741 is a prime.

Together with 2400020741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400020741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200010371 + 1200010372.

It is an arithmetic number, because the mean of its divisors is an integer number (1200010372).

Almost surely, 2^2400020743 is an apocalyptic number.

2400020743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400020743 is an equidigital number, since it uses as much as digits as its factorization.

2400020743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 2400020743 is about 48990.0065625633. The cubic root of 2400020743 is about 1338.8697573887.

Adding to 2400020743 its reverse (3470200042), we get a palindrome (5870220785).

The spelling of 2400020743 in words is "two billion, four hundred million, twenty thousand, seven hundred forty-three".