257043312 has 30 divisors (see below), whose sum is σ = 719364672. Its totient is φ = 85681056.

The previous prime is 257043299. The next prime is 257043323. The reversal of 257043312 is 213340752.

257043312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 892368 + ... + 892655.

Almost surely, 2^257043312 is an apocalyptic number.

It is an amenable number.

257043312 is an abundant number, since it is smaller than the sum of its proper divisors (462321360).

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

257043312 is a wasteful number, since it uses less digits than its factorization.

257043312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785037 (or 1785028 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 257043312 is about 16032.5703491362. The cubic root of 257043312 is about 635.8218321389.

The spelling of 257043312 in words is "two hundred fifty-seven million, forty-three thousand, three hundred twelve".