257828950 has 24 divisors (see below), whose sum is σ = 492526512. Its totient is φ = 100343520.

The previous prime is 257828947. The next prime is 257828969. The reversal of 257828950 is 59828752.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 257828950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67834 + ... + 71533.

It is an arithmetic number, because the mean of its divisors is an integer number (20521938).

Almost surely, 2^257828950 is an apocalyptic number.

257828950 is a deficient number, since it is larger than the sum of its proper divisors (234697562).

257828950 is a wasteful number, since it uses less digits than its factorization.

257828950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139416 (or 139411 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 257828950 is about 16057.0529674657. The cubic root of 257828950 is about 636.4689574906.

The spelling of 257828950 in words is "two hundred fifty-seven million, eight hundred twenty-eight thousand, nine hundred fifty".