257046012 has 18 divisors (see below), whose sum is σ = 649755288. Its totient is φ = 85681992.

The previous prime is 257046011. The next prime is 257046029. The reversal of 257046012 is 210640752.

257046012 is a `hidden beast` number, since 2 + 57 + 0 + 4 + 601 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257046011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3570048 + ... + 3570119.

It is an arithmetic number, because the mean of its divisors is an integer number (36097516).

Almost surely, 2^257046012 is an apocalyptic number.

It is an amenable number.

257046012 is an abundant number, since it is smaller than the sum of its proper divisors (392709276).

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

257046012 is a wasteful number, since it uses less digits than its factorization.

257046012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140177 (or 7140172 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 257046012 is about 16032.6545525063. The cubic root of 257046012 is about 635.8240583693.

Adding to 257046012 its reverse (210640752), we get a palindrome (467686764).

The spelling of 257046012 in words is "two hundred fifty-seven million, forty-six thousand, twelve".