240522641 has 4 divisors (see below), whose sum is σ = 245640192. Its totient is φ = 235405092.

The previous prime is 240522599. The next prime is 240522643. The reversal of 240522641 is 146225042.

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-240522641 is a prime.

It is a super-2 number, since 2×240522641² = 115702281667229762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240522641.

It is not an unprimeable number, because it can be changed into a prime (240522643) 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 3 ways as a sum of consecutive naturals, for example, 2558705 + ... + 2558798.

It is an arithmetic number, because the mean of its divisors is an integer number (61410048).

Almost surely, 2^240522641 is an apocalyptic number.

It is an amenable number.

240522641 is a deficient number, since it is larger than the sum of its proper divisors (5117551).

240522641 is an equidigital number, since it uses as much as digits as its factorization.

240522641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117550.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 240522641 is about 15508.7923772291. The cubic root of 240522641 is about 621.8972761092.

Adding to 240522641 its reverse (146225042), we get a palindrome (386747683).

The spelling of 240522641 in words is "two hundred forty million, five hundred twenty-two thousand, six hundred forty-one".