257460434 has 32 divisors (see below), whose sum is σ = 498096000. Its totient is φ = 96848640.

The previous prime is 257460433. The next prime is 257460473. The reversal of 257460434 is 434064752.

It is a junction number, because it is equal to n+sod(n) for n = 257460394 and 257460403.

It is not an unprimeable number, because it can be changed into a prime (257460433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24359 + ... + 33290.

It is an arithmetic number, because the mean of its divisors is an integer number (15565500).

Almost surely, 2^257460434 is an apocalyptic number.

257460434 is a deficient number, since it is larger than the sum of its proper divisors (240635566).

257460434 is a wasteful number, since it uses less digits than its factorization.

257460434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57698.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 257460434 is about 16045.5736575543. The cubic root of 257460434 is about 636.1655769865.

The spelling of 257460434 in words is "two hundred fifty-seven million, four hundred sixty thousand, four hundred thirty-four".