240695457 has 4 divisors (see below), whose sum is σ = 320927280. Its totient is φ = 160463636.

The previous prime is 240695453. The next prime is 240695479. The reversal of 240695457 is 754596042.

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 not a de Polignac number, because 240695457 - 2² = 240695453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240695453) 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, 40115907 + ... + 40115912.

It is an arithmetic number, because the mean of its divisors is an integer number (80231820).

Almost surely, 2^240695457 is an apocalyptic number.

It is an amenable number.

240695457 is a deficient number, since it is larger than the sum of its proper divisors (80231823).

240695457 is an equidigital number, since it uses as much as digits as its factorization.

240695457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80231822.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 240695457 is about 15514.3629260115. The cubic root of 240695457 is about 622.0461852645.

The spelling of 240695457 in words is "two hundred forty million, six hundred ninety-five thousand, four hundred fifty-seven".