240518749 has 2 divisors, whose sum is σ = 240518750. Its totient is φ = 240518748.

The previous prime is 240518743. The next prime is 240518783. The reversal of 240518749 is 947815042.

240518749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233325625 + 7193124 = 15275^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 240518749 - 2²¹ = 238421597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240518743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120259374 + 120259375.

It is an arithmetic number, because the mean of its divisors is an integer number (120259375).

Almost surely, 2^240518749 is an apocalyptic number.

It is an amenable number.

240518749 is a deficient number, since it is larger than the sum of its proper divisors (1).

240518749 is an equidigital number, since it uses as much as digits as its factorization.

240518749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 240518749 is about 15508.6668995114. Note that the first 3 decimals coincide. The cubic root of 240518749 is about 621.8939216956.

The spelling of 240518749 in words is "two hundred forty million, five hundred eighteen thousand, seven hundred forty-nine".