257075734 has 16 divisors (see below), whose sum is σ = 413220528. Its totient is φ = 119517952.

The previous prime is 257075713. The next prime is 257075747. The reversal of 257075734 is 437570752.

It is a happy number.

257075734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42727 + ... + 48370.

It is an arithmetic number, because the mean of its divisors is an integer number (25826283).

Almost surely, 2^257075734 is an apocalyptic number.

257075734 is a deficient number, since it is larger than the sum of its proper divisors (156144794).

257075734 is a wasteful number, since it uses less digits than its factorization.

257075734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91199.

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 257075734 is about 16033.5814464517. The cubic root of 257075734 is about 635.8485640135.

The spelling of 257075734 in words is "two hundred fifty-seven million, seventy-five thousand, seven hundred thirty-four".