257683460 has 24 divisors (see below), whose sum is σ = 547658496. Its totient is φ = 101830880.

The previous prime is 257683451. The next prime is 257683471. The reversal of 257683460 is 64386752.

It is a happy number.

257683460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75956 + ... + 79275.

It is an arithmetic number, because the mean of its divisors is an integer number (22819104).

Almost surely, 2^257683460 is an apocalyptic number.

257683460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257683460 is an abundant number, since it is smaller than the sum of its proper divisors (289975036).

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

257683460 is a wasteful number, since it uses less digits than its factorization.

257683460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155323 (or 155321 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 257683460 is about 16052.5219202467. The cubic root of 257683460 is about 636.3492175212.

The spelling of 257683460 in words is "two hundred fifty-seven million, six hundred eighty-three thousand, four hundred sixty".