257474482 has 8 divisors (see below), whose sum is σ = 386626716. Its totient is φ = 128598912.

The previous prime is 257474449. The next prime is 257474551. The reversal of 257474482 is 284474752.

It can be written as a sum of positive squares in 2 ways, for example, as 257313681 + 160801 = 16041^2 + 401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 66823 + ... + 70570.

Almost surely, 2^257474482 is an apocalyptic number.

257474482 is a deficient number, since it is larger than the sum of its proper divisors (129152234).

257474482 is a wasteful number, since it uses less digits than its factorization.

257474482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138332.

The product of its digits is 501760, while the sum is 43.

The square root of 257474482 is about 16046.0114047074. The cubic root of 257474482 is about 636.1771472970.

The spelling of 257474482 in words is "two hundred fifty-seven million, four hundred seventy-four thousand, four hundred eighty-two".