240493665 has 16 divisors (see below), whose sum is σ = 398059200. Its totient is φ = 123840192.

The previous prime is 240493657. The next prime is 240493667. The reversal of 240493665 is 566394042.

It is not a de Polignac number, because 240493665 - 2³ = 240493657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240493667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275995 + ... + 276864.

It is an arithmetic number, because the mean of its divisors is an integer number (24878700).

Almost surely, 2^240493665 is an apocalyptic number.

It is an amenable number.

240493665 is a deficient number, since it is larger than the sum of its proper divisors (157565535).

240493665 is a wasteful number, since it uses less digits than its factorization.

240493665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552896.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 240493665 is about 15507.8581693282. The cubic root of 240493665 is about 621.8723015800.

It can be divided in two parts, 2404 and 93665, that added together give a palindrome (96069).

The spelling of 240493665 in words is "two hundred forty million, four hundred ninety-three thousand, six hundred sixty-five".