240744393 has 20 divisors (see below), whose sum is σ = 360146820. Its totient is φ = 160265952.

The previous prime is 240744379. The next prime is 240744403. The reversal of 240744393 is 393447042.

It can be written as a sum of positive squares in 2 ways, for example, as 221057424 + 19686969 = 14868^2 + 4437^2 .

It is not a de Polignac number, because 240744393 - 2⁸ = 240744137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240746393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69343 + ... + 72731.

It is an arithmetic number, because the mean of its divisors is an integer number (18007341).

Almost surely, 2^240744393 is an apocalyptic number.

It is an amenable number.

240744393 is a deficient number, since it is larger than the sum of its proper divisors (119402427).

240744393 is an equidigital number, since it uses as much as digits as its factorization.

240744393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 240744393 is about 15515.9399650811. The cubic root of 240744393 is about 622.0883386558.

The spelling of 240744393 in words is "two hundred forty million, seven hundred forty-four thousand, three hundred ninety-three".