240657041 has 4 divisors (see below), whose sum is σ = 241292400. Its totient is φ = 240021684.

The previous prime is 240657023. The next prime is 240657091. The reversal of 240657041 is 140756042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240657041 is a prime.

It is a super-2 number, since 2×240657041² = 115831622765751362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240656995 and 240657013.

It is not an unprimeable number, because it can be changed into a prime (240657091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317111 + ... + 317868.

It is an arithmetic number, because the mean of its divisors is an integer number (60323100).

Almost surely, 2^240657041 is an apocalyptic number.

It is an amenable number.

240657041 is a deficient number, since it is larger than the sum of its proper divisors (635359).

240657041 is an equidigital number, since it uses as much as digits as its factorization.

240657041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635358.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 240657041 is about 15513.1247980541. The cubic root of 240657041 is about 622.0130897808.

Subtracting from 240657041 its reverse (140756042), we obtain a palindrome (99900999).

The spelling of 240657041 in words is "two hundred forty million, six hundred fifty-seven thousand, forty-one".