257327216 has 20 divisors (see below), whose sum is σ = 502987152. Its totient is φ = 127524096.

The previous prime is 257327207. The next prime is 257327227. The reversal of 257327216 is 612723752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69356 + ... + 72971.

Almost surely, 2^257327216 is an apocalyptic number.

It is an amenable number.

257327216 is a deficient number, since it is larger than the sum of its proper divisors (245659936).

257327216 is a wasteful number, since it uses less digits than its factorization.

257327216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142448 (or 142442 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 257327216 is about 16041.4218821151. The cubic root of 257327216 is about 636.0558341341.

The spelling of 257327216 in words is "two hundred fifty-seven million, three hundred twenty-seven thousand, two hundred sixteen".