257464241 has 8 divisors (see below), whose sum is σ = 264680640. Its totient is φ = 250261488.

The previous prime is 257464223. The next prime is 257464243. The reversal of 257464241 is 142464752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 257464241 - 2²² = 253269937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257464243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43820 + ... + 49346.

It is an arithmetic number, because the mean of its divisors is an integer number (33085080).

Almost surely, 2^257464241 is an apocalyptic number.

It is an amenable number.

257464241 is a deficient number, since it is larger than the sum of its proper divisors (7216399).

257464241 is a wasteful number, since it uses less digits than its factorization.

257464241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823.

The product of its digits is 53760, while the sum is 35.

The square root of 257464241 is about 16045.6922879631. The cubic root of 257464241 is about 636.1687125757.

The spelling of 257464241 in words is "two hundred fifty-seven million, four hundred sixty-four thousand, two hundred forty-one".