240241457 has 2 divisors, whose sum is σ = 240241458. Its totient is φ = 240241456.

The previous prime is 240241439. The next prime is 240241459. The reversal of 240241457 is 754142042.

240241457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158357056 + 81884401 = 12584^2 + 9049^2 .

It is a cyclic number.

It is not a de Polignac number, because 240241457 - 2¹⁰ = 240240433 is a prime.

It is a super-2 number, since 2×240241457² = 115431915322965698, which contains 22 as substring.

Together with 240241459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240241459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120120728 + 120120729.

It is an arithmetic number, because the mean of its divisors is an integer number (120120729).

Almost surely, 2^240241457 is an apocalyptic number.

It is an amenable number.

240241457 is a deficient number, since it is larger than the sum of its proper divisors (1).

240241457 is an equidigital number, since it uses as much as digits as its factorization.

240241457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 240241457 is about 15499.7244169050. The cubic root of 240241457 is about 621.6548377391.

Adding to 240241457 its reverse (754142042), we get a palindrome (994383499).

The spelling of 240241457 in words is "two hundred forty million, two hundred forty-one thousand, four hundred fifty-seven".