257437234 has 8 divisors (see below), whose sum is σ = 399471660. Its totient is φ = 124280016.

The previous prime is 257437163. The next prime is 257437247. The reversal of 257437234 is 432734752.

257437234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 250430625 + 7006609 = 15825^2 + 2647^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 257437193 and 257437202.

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, 2219229 + ... + 2219344.

Almost surely, 2^257437234 is an apocalyptic number.

257437234 is a deficient number, since it is larger than the sum of its proper divisors (142034426).

257437234 is a wasteful number, since it uses less digits than its factorization.

257437234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438604.

The product of its digits is 141120, while the sum is 37.

The square root of 257437234 is about 16044.8507004584. The cubic root of 257437234 is about 636.1464679212.

The spelling of 257437234 in words is "two hundred fifty-seven million, four hundred thirty-seven thousand, two hundred thirty-four".