240740743 has 4 divisors (see below), whose sum is σ = 241635960. Its totient is φ = 239845528.

The previous prime is 240740741. The next prime is 240740749. The reversal of 240740743 is 347047042.

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 240740743 - 2¹ = 240740741 is a prime.

It is a super-2 number, since 2×240740743² = 115912210680384098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240740741) 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, 447205 + ... + 447742.

It is an arithmetic number, because the mean of its divisors is an integer number (60408990).

Almost surely, 2^240740743 is an apocalyptic number.

240740743 is a deficient number, since it is larger than the sum of its proper divisors (895217).

240740743 is an equidigital number, since it uses as much as digits as its factorization.

240740743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895216.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 240740743 is about 15515.8223436594. The cubic root of 240740743 is about 622.0851947489.

Adding to 240740743 its reverse (347047042), we get a palindrome (587787785).

The spelling of 240740743 in words is "two hundred forty million, seven hundred forty thousand, seven hundred forty-three".