257612234 has 8 divisors (see below), whose sum is σ = 421547328. Its totient is φ = 117096460.

The previous prime is 257612227. The next prime is 257612239. The reversal of 257612234 is 432216752.

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

It is a self number, because there is not a number n which added to its sum of digits gives 257612234.

It is not an unprimeable number, because it can be changed into a prime (257612239) 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 3 ways as a sum of consecutive naturals, for example, 5854802 + ... + 5854845.

It is an arithmetic number, because the mean of its divisors is an integer number (52693416).

Almost surely, 2^257612234 is an apocalyptic number.

257612234 is a deficient number, since it is larger than the sum of its proper divisors (163935094).

257612234 is a wasteful number, since it uses less digits than its factorization.

257612234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709660.

The product of its digits is 20160, while the sum is 32.

The square root of 257612234 is about 16050.3032370108. The cubic root of 257612234 is about 636.2905812573.

Adding to 257612234 its reverse (432216752), we get a palindrome (689828986).

The spelling of 257612234 in words is "two hundred fifty-seven million, six hundred twelve thousand, two hundred thirty-four".