257740314 has 16 divisors (see below), whose sum is σ = 555133152. Its totient is φ = 79304688.

The previous prime is 257740279. The next prime is 257740319. The reversal of 257740314 is 413047752.

It is not an unprimeable number, because it can be changed into a prime (257740319) 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, 1652104 + ... + 1652259.

It is an arithmetic number, because the mean of its divisors is an integer number (34695822).

Almost surely, 2^257740314 is an apocalyptic number.

257740314 is an abundant number, since it is smaller than the sum of its proper divisors (297392838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257740314 is a wasteful number, since it uses less digits than its factorization.

257740314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304381.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 257740314 is about 16054.2926969705. The cubic root of 257740314 is about 636.3960143909.

The spelling of 257740314 in words is "two hundred fifty-seven million, seven hundred forty thousand, three hundred fourteen".