257696414 has 8 divisors (see below), whose sum is σ = 387804648. Its totient is φ = 128428200.

The previous prime is 257696371. The next prime is 257696419. The reversal of 257696414 is 414696752.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257696419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209237 + ... + 210464.

It is an arithmetic number, because the mean of its divisors is an integer number (48475581).

Almost surely, 2^257696414 is an apocalyptic number.

257696414 is a deficient number, since it is larger than the sum of its proper divisors (130108234).

257696414 is a wasteful number, since it uses less digits than its factorization.

257696414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420010.

The product of its digits is 362880, while the sum is 44.

The square root of 257696414 is about 16052.9254031781. The cubic root of 257696414 is about 636.3598806420.

The spelling of 257696414 in words is "two hundred fifty-seven million, six hundred ninety-six thousand, four hundred fourteen".