257412202 has 8 divisors (see below), whose sum is σ = 393403716. Its totient is φ = 126277632.

The previous prime is 257412187. The next prime is 257412229. The reversal of 257412202 is 202214752.

It can be written as a sum of positive squares in 2 ways, for example, as 248346081 + 9066121 = 15759^2 + 3011^2 .

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

It is a super-2 number, since 2×257412202² = 132522083476977608, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1214103 + ... + 1214314.

Almost surely, 2^257412202 is an apocalyptic number.

257412202 is a deficient number, since it is larger than the sum of its proper divisors (135991514).

257412202 is a wasteful number, since it uses less digits than its factorization.

257412202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428472.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 257412202 is about 16044.0706181443. The cubic root of 257412202 is about 636.1258486111.

Adding to 257412202 its reverse (202214752), we get a palindrome (459626954).

The spelling of 257412202 in words is "two hundred fifty-seven million, four hundred twelve thousand, two hundred two".