257238362 has 8 divisors (see below), whose sum is σ = 393138036. Its totient is φ = 126192352.

The previous prime is 257238361. The next prime is 257238383. The reversal of 257238362 is 263832752.

It can be written as a sum of positive squares in 2 ways, for example, as 243703321 + 13535041 = 15611^2 + 3679^2 .

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

It is not an unprimeable number, because it can be changed into a prime (257238361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213283 + ... + 1213494.

Almost surely, 2^257238362 is an apocalyptic number.

257238362 is a deficient number, since it is larger than the sum of its proper divisors (135899674).

257238362 is a wasteful number, since it uses less digits than its factorization.

257238362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426832.

The product of its digits is 120960, while the sum is 38.

The square root of 257238362 is about 16038.6521254125. The cubic root of 257238362 is about 635.9826165759.

The spelling of 257238362 in words is "two hundred fifty-seven million, two hundred thirty-eight thousand, three hundred sixty-two".